EP0528884A1

EP0528884A1 - Process and device for automatically laying a fiber band on a textile machine.

Info

Publication number: EP0528884A1
Application number: EP91909136A
Authority: EP
Inventors: Albert Kriegler; Michael Strobel; Klaus Franz; Edmund Schuller; Rupert Karl; Michael Ueding
Original assignee: Schubert und Salzer Maschinenfabrik AG
Current assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date: 1990-05-18
Filing date: 1991-05-17
Publication date: 1993-03-03
Anticipated expiration: 2011-05-17
Also published as: JPH05501739A; DE59109111D1; DE59108961D1; BR9105752A; WO1991018135A1; EP0668380B1; EP0528884B1; US5276947A; EP0709501B1; WO1991018134A1; EP0770717A2; CS146291A3; EP0668380A2; EP0709501A3; EP0528907B2; EP0668380A3; EP0709501A2; CZ146091A3; DE59108036D1; DE59109242D1

Abstract

Pour la pose automatique d'un ruban de fibres (4) sur une machine textile présentant un dispositif d'alimentation (2), la fin d'un ruban de fibres (4) est placée dans une position de réception déterminée. Dans cette position de réception, la fin du ruban est reçue en tant que début de ruban et transmise au dispositif d'alimentation (2). Pour la mise en oeuvre de ce procédé, il est prévu un dispositif de présentation du ruban (3) dans lequel le ruban de fibres (4) est maintenu dans cette position de réception déterminée. Il est prévu également, pour recevoir le ruban de fibres (4) présenté dans cette position de réception et pour l'introduire dans le dispositif d'alimentation (2), un dispositif d'amenée du ruban (5). La machine textile peut être conçue comme une machine textile quelconque travaillant ou transformant un ruban de fibres (4), par exemple comme un démêloir, un métier à filer, une machine à tricoter ou similaire.For the automatic laying of a ribbon of fibers (4) on a textile machine having a feed device (2), the end of a ribbon of fibers (4) is placed in a determined reception position. In this receiving position, the end of the tape is received as the start of the tape and transmitted to the feeder (2). For the implementation of this method, there is provided a device for presenting the ribbon (3) in which the ribbon of fibers (4) is held in this determined reception position. In order to receive the ribbon of fibers (4) presented in this receiving position and to introduce it into the feed device (2), a device for feeding the ribbon (5) is also provided. The textile machine can be designed as any textile machine working or processing a ribbon of fibers (4), for example as a detangler, a spinning machine, a knitting machine or the like.

Description

Method and device for automatically applying a sliver to a textile machine

The present invention relates to a method for the automatic application of a fiber sliver to a textile machine or device having a feeding device, and to a device for carrying out this method.

It is known to remove a sliver from a jug and to present it to the feed device of a textile machine (US Pat. No. 4,838,018). It has been shown that it is not possible to always securely pick up a fiber sliver with the known device, since this takes on a randomly determined relative position in the jug relative to the gripping arm receiving the fiber sliver. As a result, a secure transfer to the feed device of the textile machine is not guaranteed.

It is therefore an object of the present invention to provide a method and a device which ensure that the sliver can be safely introduced into the feed device of the textile machine or device and the work of the machine or device can be continued without or only with a slight interruption.

This object is achieved in that the end of the sliver is brought into a defined receiving position, in which the sliver end is taken up as the beginning of the sliver and transferred to the feed device. Since the sliver is in a defined position for picking it up, it becomes the receiving device is always picked up in the same position and can therefore also be handled in the same way. Through this handling, the sliver can be brought into a defined state and in a defined position with respect to the feed device, so that the transfer and insertion into the feed device of the textile machine, ie the application, can be carried out safely and quickly without difficulty sen.

For the purposes of the present invention, a "textile machine" should be understood to mean any textile machine that processes fiber slivers. These include e.g. Draw frames and spinning machines such as ring, air, false-wire and open-end spinning machines, but other textile machines to which fiber tapes are fed for processing can also be suitable, such as e.g. Circular knitting machines to which fiber tapes are fed for the production of pile fabrics and carpets. Working elements can thus be a drafting system (for example in the case of a draw frame or air spinning machine), a spindle (for example in the case of a ring spinning machine), an opening roller (in the case of an open-end spinning machine), a needle cylinder (in the case of a circular knitting machine) and the like . The place where these work organs are located is referred to below as the work place. As a rule, a textile machine in which the subject matter of the invention can be used has more than one job, but the invention is not restricted to this.

For the purposes of the present invention, “sliver” should be understood to mean any sliver composed of fibers, regardless of whether or not the sliver has a certain rotation, as is the case with sliver.

As a "feeding device" in the sense of the present invention is considered that device that takes up the sliver and feeds the working organ of the textile machine.

It is not necessary that the sliver is not

\, position is brought into a controlled position. In many cases it is expedient since it is particularly easy to automate if the beginning of the tape is first brought into a standby position and is only transferred from this standby position to the recording position. This standby position can be provided at different points. According to a preferred embodiment of the method according to the invention, this readiness position (or else the receiving position) is provided on a can to be fed to the textile machine. Differences are also possible here. A standby or receiving position in the center of the jug or alternatively also in its peripheral area outside the jug has proven to be particularly useful.

For simple handling of the sliver with a view to a precise and rapid transfer of the sliver end as the beginning of the sliver to the feed device of the textile machine, it is advantageous according to the invention if the sliver end protruding downwards in or on the can has a length of at least 100 mm and has a maximum of 200 mm. Deviating strip end lengths are also possible, but either make it more difficult to take up and / or require a longer excess strip section to be cut off, so that avoidable fiber loss occurs.

According to the invention, it is advantageously provided that the end of the tape is brought into the standby position provided on the jug as soon as the filling of the jug is started and that the sliver is then moved to the loading position at the loading point by transporting the jug to the receiving position. is brought to the relevant feeder. In this way, the sliver remains under control from the filling to the feed device, ie also during transport. In order to bring the sliver into the ready position, it is advantageous if, after it has been filled in a filling station, the can is moved out of its filling position, but the feeding of the sliver is only ended afterwards. In this way, the sliver can be easily placed over the edge of the can.

In order to provide a simple means of receiving the sliver placed over the edge of the can, the sliver should always be located at one and the same point on the circumference of the can. In order to achieve this, it is expediently provided that the end of the strip is deposited in the center of the direction of extension of the can from the filling station on the trailing side of the can. In order to guarantee this defined belt position up to the receiving position in front of the feed device, it is advantageous if the can is transported with the sliver into the receiving location on the relevant feed device and the sliver is secured to the can during transportation of the can . Not only should the sliver be secured with respect to the can, but also the can with the strap secured to it should assume a certain relative position with respect to the work place when it reaches the feed device of the textile machine. For this reason, it is advantageous if the jug is secured against rotation until the moment at which it reaches the receiving position with the beginning of the tape.

The measures described above can be used to safely pick up the beginning of the tape. The recording security is further increased if a length section of the tape is initially brought into a defined path of predetermined length in the ready position and / or the receiving position. As a result, a pick-up and feed device can reliably detect the end of the tape, the relative position between the start of the tape and the pick-up element being properly secured.

A length section of the beginning of the tape can be secured in a defined path of predetermined length in various ways. It has proven to be particularly expedient if the length of the sliver is clamped in the vicinity of the free end of the sliver start, while the sliver is guided axially movably at the other end of the defined path. In this way, the sliver can be inserted into the feed device without it being necessary to remove the sliver from the guide. If the introduction of the fiber band into the feed device fails, the band can be found again in a simple manner, since the position of the fiber band is predetermined at least in the region of this guide.

According to an advantageous embodiment of the method according to the invention, the beginning of the strip is brought into the receiving position above a can supplied to the feed device. This makes this tape start particularly easy to access. It is expedient here that the sliver fed from the receiving position of the feed device is guided so high that it does not come into contact with the sliver located in these cans when it is fed through other cans.

In order to facilitate the introduction of the beginning of the belt into the feed device of a textile machine, the beginning of the belt is advantageously prepared for transfer to the feed device. It is particularly expedient here if the tape start to be prepared is brought to a defined length. Here- this ensures that the free end of the beginning of the tape protruding from the feeder unit and intended for insertion into the feed device cannot assume any position, as is the case due to gravity or other influences in a longer, undefined length section would be, but occupies a defined position.

In order to ensure that when the beginning of the tape is introduced into the feed device, a tape break does not occur again immediately, this should have a certain minimum thickness, which generally corresponds to the desired thickness of the sliver. For this reason, according to a further advantageous embodiment of the method according to the invention, it is provided that a band section which does not correspond to the desired thickness is cut off from the beginning of the band while it is brought to a defined length.

The beginning of the tape can also be separated in various ways. It has proven to be particularly advantageous if the beginning of the sliver to be brought to a defined length is produced by pulling the sliver apart.

In order to make it even easier to insert the beginning of the sliver into the feed device, the beginning of the sliver is expediently pointed during the preparation of the beginning of the sliver. Here, the beginning of the tape to be prepared can be rotated about its own axis. Additionally or alternatively, the beginning of the strip to be prepared can be exposed to an air stream.

The prepared beginning of the tape is expediently solidified in its shape. This can also be done in various ways, for example with the aid of a spray or by freezing. It is particularly advantageous if the beginning of the tape is solidified by applying a predetermined amount Time volatile volatile medium takes place.

It is also possible according to the invention to insert the beginning of the tape into a holder in which it is brought into the standby or receiving position, in which the fiber tape remains inserted during further steps of applying the tape and / or preparing for it. The sliver can only be used for some or all of the work steps from the sliver storage z. B. remain on the route to the template on the feeder in the holder. This can be designed particularly cheaply for handling geometrically.

The tape start is expediently introduced directly into the running feed device when it is transferred to the textile machine. In order to avoid the formation of excess tape in the form of tape loops in the fiber tape fed to the feed device, the feed speed of the beginning of the tape into the feed device is preferably matched to its delivery speed. This can be done in such a way that the beginning of the tape of the feed device is fed at a speed which is less than or at most the same as the delivery speed of the feed device.

In order to ensure that the introduction of the sliver into the feed device was successful, it is advantageous if the movement of the sliver in front of the feed device is monitored and the introduction of the sliver is repeated when it is not being transported.

When the sliver is fed to the feed device of an open-end spinning device, a successful insertion of the sliver into the feed device is advantageously immediately followed by a piecing process, since with an open-end Spinning device the flow of the fiber material is interrupted after a sliver has run out and a thread breakage has occurred. If fibers are now fed to the spinning element during the re-spinning, these fibers cannot be drawn off from the spinning element, since they have no connection to a thread yet. In order to be able to obtain a defined attachment point, the sliver must be fed through the feed device until the sliver has reached the desired thickness in the area of the feed device. Up to this moment, the fibers should not be deposited on or in the spinning element, since they would otherwise impair the piecing. For this reason, it can be provided in a further advantageous embodiment of the method according to the invention that before the piecing process takes place during the introduction of the fiber sliver, the fibers detached therefrom are prevented from being deposited in or on the spinning element and are instead removed.

The removal of the unwanted fibers can be achieved according to the invention by the spinning element being braked continuously or intermittently during the introduction of the sliver into the feeding device, so that the fibers supplied by the feeding device are removed by the effective spinning vacuum and thereby being prevented from depositing fibers in or on the spinning element. Such a process avoids that the piecing process has to be coordinated with the introduction of the sliver. A possible preparation of the beginning of the sliver is therefore not to be tailored to the piecing, but only to the introduction of the sliver into the feed device.

It is by no means an indispensable requirement that the fiber sliver is immediately introduced into the feed device when it is transferred to the textile machine. According to another In an advantageous embodiment of the method according to the invention, when the tape is transferred to the textile machine, it is brought into a waiting position which is offset from the normal belt run, from which it is brought to the feed position in front of the feed device at the desired point in time and then inserted into the running feed device ¬ leads. Such a method enables the fiber sliver to be made available at a point in time at which the fiber sliver being processed or processed has not yet run out. The transition from the end of the sliver to the new sliver can thus take place very quickly, since it is not necessary to wait until the jug with the sliver is brought to the relevant job, but this jug beforehand while the old sliver is running can be provided.

In the case of a method as has just been described, the band request in the waiting position is expediently shifted into the infeed depending on the outlet of the fiber band previously fed to the feed device. In a further expedient embodiment of the method according to the invention, the beginning of the sliver is brought into the feed position so early that it is fed to the feed device in an overlapping manner with the end of the sliver running out. In this way, the fiber sliver can be introduced into the feed device in such a way that an interruption of the material flow does not occur at all and fiber material can be fed to the work station without interruption.

In order to ensure that the beginning of the fiber is successfully brought into a waiting position offset from the normal belt run, the beginning of the band in the waiting position is advantageously secured against sliding back. The beginning of the tape brought into the waiting position is expediently monitored and if the introduction of the beginning of the tape fails, the insertion process is then repeated. In this way it is ensured that in the waiting position a belt is always available in time, which can then be fed to the feed device by offset.

Since failure to insert the beginning of the tape can lead to impairment of the beginning of the tape, it is advantageous if the insertion process is repeated from the preparation of the beginning of the tape for insertion.

It is pointless if the occurrence of major errors that cannot be automatically remedied, the tape insertion process is repeated countless times. It has therefore proven to be expedient if, after a predetermined number of failures, e.g. after three unsuccessful insertion attempts, the tape insertion attempts are stopped and an error signal is generated. This informs the machine operator of the error and can now take measures to rectify it.

The sliver to be fed is preferably picked up and clamped in a defined position, then cut and brought into a defined shape, whereupon the sliver thus prepared is brought in front of the feed device and introduced into it, a defined length of sliver being introduced into the feed device and the insertion success is checked in order to repeat the insertion process if the beginning of the tape fails. In this way, a high level of security is achieved since the sliver is given an optimal length and shape by the preparation and is also introduced into the feeding device over a predetermined length. By checking the insertion sequence, which takes place after the defined length of tape has been introduced into the feed device, it is also ensured that unsuccessful insertion processes are detected, so that a failure of this job can be avoided by repeating the tape application process.

So that a new belt is not made available only after a belt has already run out, it is advantageous if the belt length fed to the feed device is monitored and an additional can is provided as a function of exceeding a defined belt length and the beginning of the belt is introduced into the feed device becomes.

In order to be able to carry out the introduction of a new sliver as far as possible without loss of time, it is advantageously dependent on reaching a fixed sliver length - which is of course greater than the sliver length which leads or can lead to the provision of an additional can - The beginning of the band of a sliver in a can now provided is inserted into the feed device.

As a rule, there is little space for the cans at the workplace of the textile machine. In order not to have to create the required additional space for the can only for the sliver to be put in or under the machine by means of complex constructions, it is expedient to provide the can with the sliver to be inserted, ie to be put on, in a waiting position, the sliver then put on the feeding device and only then bring the jug with the newly created sliver into its working position in or under the machine after the jug, from which the sliver which has meanwhile expired has been removed, has been removed from this work station. In order to be able to determine exactly whether the can with the sliver fed to the feeding device is actually empty or not, it is expedient if the inside of the can, which contains the sliver fed to the feeding device, is scanned and when this sliver runs out, the insertion is carried out the beginning of a new fiber sliver, which has been made available in a standby position in the meantime, as the feed device is triggered.

If, as usual, the jug has a diameter which is of the order of magnitude of two workplaces located next to one another, then the waiting position for a third jug as a reserve jug is expediently placed behind the two cans of two adjacent feeding devices arranged one behind the other in their workplaces the introduction of a sliver into the feed device is provided.

In order to carry out the method described, in a device for automatically applying a sliver to a textile machine or device, a sliver in which the sliver can be held in a defined receiving position and a sliver feeder for receiving the sliver provided in the close position and provided for its insertion into the feed device.

The belt feeder can be designed differently and is formed in a simple embodiment by the can in which the fiber sliver to be applied is placed in the feed device.

A filling station with a belt deposit and a control device for generating a relay is expediently active movement between the sliver and the jug in such a way that the sliver is placed with the sliver end in a defined position on or in the jug. A complicated search for the end of the band for the reception and for the introduction thereof into the feed device, possibly a complicated reorientation in the band feeder or in a device upstream of this band feeder, is therefore not necessary. Nevertheless, a secure insertion of the beginning of the fiber band into the feed device of the open-end spinning device is ensured.

According to an advantageous embodiment, a tape depositor is provided for this purpose, which places the tape end in the center of the tape turns in the can.

The end of the tape can be recorded as a new beginning of the tape in various ways. It is advantageous if the tape feeder can be brought into the center of the jug between the tape windings in order to pick up the tape end in a defined manner.

According to a further advantageous embodiment of the subject matter of the invention, a tape depositor is provided which deposits the end of the tape over the edge of the can. In this case, it is advantageous if the belt feeder can be moved along the circumference of the can for the defined reception of the belt end.

To ensure that the beginning of the sliver is not deposited at any point on the can circumference, but also here in a defined position, which is then particularly easy to find for the sliver to be taken up by the sliver feeder, the sliver feeder is expediently fastened to a can, one of which Detachable attachment of the tape feeder to the can enables the use of conventional cans. It has proven to be advantageous to design the tape feeder as a tape guide, since then the sliver can still perform axial movements in the tape feeder, which is desirable so that the fiber sliver only needs to be removed from the tape feeder at a later time after completion of the tape application.

According to a preferred embodiment of the subject matter of the invention, a filling station with a sliver and a control device for generating a relative movement between the sliver and the sliver is provided in such a way that the end of the sliver is inserted into the sliver.

It is not necessary for the sliver deposited in the sliver to be taken up directly by the sliver feeder, by means of which it is also fed to the feed device of the textile machine. In many cases, particularly in the case of fully automatically operating devices, the interposition of a tape recorder can prove to be expedient, with this tape recorder having the task of picking up the fiber sliver deposited in a defined position on or in the can and starting it at the beginning of the tape to hand over the tape feeder.

Depending on the type of the previous tape deposit, the tape pickup can also be brought into the center of the pot between the tape turns. According to another advantageous embodiment of the subject matter of the invention, the tape receiver can be moved along the circumference of the can.

According to an advantageous embodiment of the subject matter of the invention, the belt pickup and / or belt feeder is pneumatic. It has for a safe absorption of the fiber belt and also for a safe transfer of the same to the belt feeders and / or to the feed device has been found to be advantageous if the belt loader and / or the belt receiver and / or the belt feeder is connected to a switchable overpressure / vacuum source. having nenen base body, which at its free end a has the length of the angepaß¬ to be detected tape end tes sieve in its length which extends over a partial circumference of the basic body pers ^". With an effective vacuum, the sliver is taken up, while for the handover the excess pressure is switched on.

According to a preferred embodiment of the subject matter of the invention, in the case of a pneumatic configuration of the tape dispenser and / or tape receiver and / or tape feeder, its base body is divided into a plurality of chambers extending in the longitudinal direction, each of which is delimited by a separate partial area of the screen and individually, i.e. can be switched to negative pressure or positive pressure independently of the other chambers. This ensures both secure tape take-up and secure tape delivery. It is particularly expedient if the air flow in the pneumatic belt depositor and / or belt receiver and / or belt feeder can be controlled as a function of its movement, in particular when the belt is being dispensed.

As a result of the device described, the end of the band is at the beginning of the band in a defined position on the can. In order that this position on the textile machine can be found particularly easily, a transport device is expediently provided for the transport of the can from the filling station to the feeding device of the textile machine, whereby cooperating guides on the transport device and can ensure that that the jug is in a certain position came to the job. So that the movement of the jug to the feeding device can also take place in a defined manner, according to a preferred embodiment of the subject matter of the invention, the jug and the textile machine likewise have cooperating guides which are expediently arranged in the vicinity of the lower or the upper edge of the jug.

The guides of the jug can be designed differently. It when the guide of the can is formed by a non-circular outer profile of the can is particularly advantageous. The jug preferably has an elongated cross section. As a result, the can can be made narrower than previously customary, so that more cans than before can be accommodated next to one another on the machine, which makes it easier to provide cans for a quick reintroduction of the sliver into the feed device.

When using cans with an elongated cross-section, the dimensions of the cans are advantageously determined according to the invention in such a way that the capacity of the flat can corresponds to the capacity of a conventional round can. Preferably, especially in the case of open spinning machines, the capacity of the can with an elongated cross section corresponds to that of a can with a round cross section with a diameter of 450 to 500 mm, it being advantageous if the width of the can essentially corresponds to the width of a spinning station corresponds to an open-end spinning machine and the length of the can is essentially four times its width.

The jug expediently has a loose bottom which can be raised by action from the outside.

If the jug does not itself serve as a ribbon feeder, but on a separate belt feeder is attached to it, it is advantageous to connect the guide of the jug to this belt feeder.

In an alternative embodiment of the subject matter of the invention, the belt feeder is not arranged on the can, but rather at the end of a rail fastened to the machine frame, said rail advantageously being displaceable transversely to the machine longitudinal direction. As a result, this rail can be brought with the belt feeder into a working position in which it protrudes laterally from the machine, or can be brought back into a rest position in which it does not disturb the working area in front of the machine.

Regardless of the design of the tape feeder, this can also be arranged vertically at different heights. It has proven to be particularly advantageous for the handling of the cans and also of the tapes if the tape feeder is arranged at a vertical distance above the upper edge of the can.

In principle, the tape feeder can be designed differently, but an embodiment in which the tape feeder has two tape holders arranged at a distance from one another has proven to be particularly advantageous for the tape feeder to take up the tape. The two tape holders are expediently arranged essentially horizontally at the same height.

The tape holders can also be designed differently, but they should be able to be inserted and removed in the simplest possible way. For this reason, the first tape holder is advantageously - as seen in the direction of the tape start Band guide and the second band holder designed as a clamp.

In order to enable rapid insertion of the sliver into the sliver holder, the invention provides that the clamp of the sliver has an insertion guide that tapers in the transverse direction to the sliver between the two sliver holders and allows the sliver to be self-threaded.

In order to enable the tape to be threaded into the tape guide in a particularly simple manner, the tape guide advantageously has a tape insertion slot leading radially outwards. It is therefore not necessary to provide an eyelet which can be opened and closed by opening a part thereof, but the tape guide need not be actuated at all for the insertion and removal of the fiber sliver.

The sliver does not need to be threaded manually. For automatic threading of the sliver, a device for threading the beginning of the sliver into the sliver guide is advantageously provided in a further embodiment of the invention, which device is preferably designed as a controllable clamp.

A device for automatically threading the sliver out of the sliver guide is also expediently provided. According to a simple embodiment of the subject matter of the invention, the device for unthreading the fiber sliver is designed as a fork-shaped belt gripper that is movable transversely to the fiber sliver and is located at a radial distance on an axis rotatable about its longitudinal axis. The fork shape together with the transverse movement relative to the sliver enables the sliver to be gripped more securely while the rotational movement does the actual thing Threading the sliver allows. In order to improve the gripping security, the sliver gripper can be assigned a sliver guide which brings the sliver onto a defined sliver path and which, according to a simple design of the device according to the invention, is not a separate element but part of this sliver gripper.

It has proven to be advantageous if a switching device is provided for triggering the tape unthreading from the tape guide, which switching device is expediently connected in terms of control to a tape monitoring device. In this way, the tape can be unthreaded depending on the success of the tape insertion into the feed device, with such an unthreading being avoided if the previous tape application has failed and must therefore be repeated.

In order to avoid an additional element for the aforementioned threading of the sliver into the sliver, it can be provided in a preferred embodiment of the subject matter of the invention that the device for threading the sliver and / or the device for threading out the sliver by the tape receiver or the belt feeder is formed.

In order to be able to bring the sliver to a certain length, the sliver can have a sliver length measurement mark. This then facilitates a defined cutting to length of the fiber band.

According to a preferred embodiment, the belt feeder of the device according to the invention has a controllable clamp which is movable transversely to the sliver located in the receiving position. This ensures that the sliver is not inadvertently in its relative position to the sliver feeder after the take-up can change. A design of the controllable clamp of the belt feeder as a pair of rollers has been shown to be particularly expedient, with the aid of which the beginning of the belt can be fed to the feed device and the rollers of which can be removed radially from one another so that the sliver can be fed back into the feed device once it has been inserted to release. It is not necessary for both rollers of the pair of rollers to be driven. Rather, it has proven to be particularly advantageous if the pair of rollers has only one drivable roller, the other roller being able to be carried along by the drivable roller.

In order to be able to pick up the fiber sliver particularly easily through the pair of rollers, the rollers are preferably overhung, their clamping line being limited to the bearing side by a strap support. This avoids the fact that the fiber belt can assume an undefined position within the pair of rollers and thereby leave the pair of rollers completely or partially before it has been transferred to the feed device. In a further advantageous embodiment of the invention, the overhung rollers each have a corrugation which is inclined to the surface line of the respective roller in such a way that they approach one another when the rollers are rotating in the feed direction. As a result, the fiber web is brought into contact with the web support while the rollers are running.

In order to ensure that the sliver has actually been safely introduced into the feed device, a belt monitoring device is advantageously provided which is connected to the belt feeder in terms of control. In this case, the belt monitoring device can advantageously be brought into effect in front of the feed device in order to be as early as possible To achieve responsiveness. Furthermore, the belt monitoring device is expediently arranged on the belt feeder. If the belt feeder has a pair of rollers, it is particularly advantageous if the belt monitoring device is formed by a sensing device which is assigned to a roller of the pair of rollers, the drive of which is designed such that the pair of rollers can be driven by the moving sliver . For this purpose, the drive of the driven roller can contain a clutch, this advantageously being controllable. However, the clutch can also be designed as a slip filling.

According to a simple and therefore preferred embodiment of the described belt monitoring device, one of the two rollers has markings on its circumference which can be scanned by the scanning device. In order to enable a good adaptation to different strip feed speeds, the markings should have a maximum circumferential distance of 90 °, so that generally more than just four markings are arranged on the circumference of the roller. The markings can be designed differently and preferably also be formed by the corrugation of the rollers, so that additional markings are not necessary.

According to another advantageous embodiment of the subject matter of the invention, the belt monitoring device is formed by a device that scans the drive of the feed device during uninterrupted spinning operation.

For automatic threading out of the sliver after a successful insertion process of the sliver into the feed device, it can be provided that the feeler device is designed as a switching device for triggering the sliver unthreading process is.

In order to ensure that the belt feeder can provide a defined belt length for insertion into the feed device of the textile machine, it can be provided that the rollers are reversible in their direction of rotation and - viewed in the direction of the belt start - one Belt length scanning device is connected downstream, which is connected in terms of control with the drive of the rollers. In this way, the sliver can be picked up by the sliver feeder in any way by this roller pair and the sliver can be brought into the desired relative position with respect to the roller pair by driving the rollers in one or the other direction.

In order to ensure safe insertion of the sliver into the feed device, the speed of the pair of rollers of the belt feeder can advantageously be matched to the peripheral speed of the feed device. It is not a prerequisite that these speeds are the same; the speed of the pair of rollers does not necessarily have to be lower than the peripheral speed of the feed device, but it has proven to be particularly expedient if the speed of the pair of rollers of the belt feeder does not exceed the peripheral speed of the feed device in order to avoid loop formation between the belt feeder and feed device . If the belt feeder has no pair of rollers, the speed of the belt feeder is advantageously matched to the peripheral speed of the feed device by appropriately controlling the swiveling speed of the belt feeder.

It is important that the sliver fed to the textile machine has a certain strength compared to the nominal strength. to prevent the sliver from tearing when putting on the sliver. For this reason, it is advantageous if the rollers are part of a strip thickness scanning device which is connected to the drive of the rollers in terms of control. With the help of such a device, it is possible to move the sliver back and forth in one direction or the other by appropriate drive of the rollers until the desired target strength is scanned and is thus available for insertion.

In order to bring the belt to be fed to the feed device of the textile machine into a desired state which is optimal for insertion, it is expedient if a belt start preparation device is provided with two parts which are movable relative to one another, one of which is formed by the belt feeder . In this case, the tape feeder of the initial tape preparation device is preferably deliverable, while the part of the tape initial preparation device cooperating with the tape feeder is stationary. The tape start preparation device expediently has an insertion funnel in order to guarantee reliable insertion of the tape start into this tape start preparation device.

In order to bring the beginning of the tape into a certain shape, the insertion funnel can be driven in rotation. The beginning of the tape can thus be sharpened by this rotation of the insertion funnel, which makes insertion into the feed device particularly simple and safe.

According to another, particularly simple and therefore inexpensive device, the tape start preparation device has a controllable suction nozzle. Thanks to this controllable suction nozzle, the beginning of the band can be pneumatically sharpened and to be brought into the desired shape.

The effect of the suction nozzle can be further supported by the fact that at least one compressed air nozzle with both an axial and a tangential component opens into it. A further support of the air flow for sharpening the beginning of the band is achieved if the suction nozzle has a helical inner contour.

Not only the shape, but also the length of the sliver is important for a safe insertion of the beginning of the sliver into the textile machine. For this reason, the tape start preparation device expediently has a tape separating device which can be designed as a cutting device in a simple embodiment of the subject of the invention. If the tape feeder has a tape length measuring device, this can be designed as a cutting device. Alternatively or additionally, it can also be provided that the cutting device is arranged in the suction nozzle.

According to a simple device, the cutting device consists of an anvil and a knife which can be moved radially with respect to this anvil and which in its resting position releases the interior of the suction nozzle. In order to prevent uneven wear of the anvil, the anvil is advantageously designed as a cylinder that can be rotated about its axis, it being particularly advantageous if the cylinder can be rotated by an angle determined by its stroke each time the cutting device is actuated by the knife is.

According to a preferred embodiment of the subject matter of the invention, the belt separating device has a controllable clamp which cooperates with the belt feeder, in particular if the Belt feeder itself is designed as a clamp. This enables the sliver to be separated by pulling it apart in a particularly safe manner. This clamp has various tasks. For example, it can limit the sharpening of the beginning of the sliver. On the other hand, however, it can also be provided that the clamp of the belt start preparation device which cooperates with the belt feeder is connected in terms of control to the drive of the rollers of the belt feeder. In this way, by turning back the rollers, the strip between the pair of rollers and the clamp can be separated by pulling them apart.

However, the tape start preparation device can also be designed differently and, in accordance with another advantageous embodiment, uses a clamp that cooperates with the tape feeder in the form of a pair of rollers driven in opposite directions. These are expediently arranged with respect to one another, so that these rollers also allow the sliver to be sharpened.

In order to easily bring the beginning of the strip to be fed to the feed device to a defined length, a drive for changing the relative distance is assigned to the strip feeder and the clamp that works with the strip feeder. Thus, by pivoting the clamp cooperating with the band feeder relative to the band feeder or vice versa by pivoting the band feeder relative to the clamp cooperating with it, the distance between these two elements can be increased, thereby pulling the band apart and separated. The pair of rollers of the belt feeder can be part of the belt cutting device. According to a preferred embodiment of the subject matter of the invention - seen in the direction of the beginning of the strip - the strip separating device has a further controllable clamp connected upstream of the pair of rollers, as a result of which increased safety when cutting the strip is achieved.

When separating the pair of rollers, the sliver should not be impaired by the further clamp connected upstream of the pair of rollers. This is achieved according to the invention in that the further clamp connected upstream of the roller pair has two clamping elements with interlocking profiles, which are preferably rounded. It is expedient if one of the two interlocking profiles has a concave cross section and the other of the interlocking profiles has a convex cross section.

The two controllable clamps together form the belt cutting device, which is why it is advantageous if these two clamps can be controlled synchronously.

In order to achieve a safe and defined separation of the sliver, it is provided according to a further expedient feature of the invention that the minimum distance between the two clamps of the sliver separating device is predetermined by the length of the fibers of the sliver. It has proven to be advantageous if the distance between the two clamps of the belt cutting device can be increased substantially to twice the stack length.

The relative movement between the two clamps can be achieved by any movement. However, an embodiment is particularly advantageous in which at least one of the two clamps is pivotably mounted to enlarge the minimum distance is.

In order to ensure that a sufficiently long tape length is available for feeding into the feed device, it is expediently provided that the tape start preparation device has a tape length scanning device which is connected to a control device in terms of control. In this way, this control device can ensure that the desired tape length is made available for later insertion into the feed device of the textile machine by appropriate control of the tape cutting device or in another suitable manner. It is advantageously provided that the control device is connected in terms of control to the drive of the rollers of the belt feeder, so that the desired initial length of the belt can be provided by driving the rollers in one direction or the other.

In order to ensure that the fiber sliver retains its shape obtained in the sliver start preparation device unchanged until it is introduced into the feed device, the sliver start preparation device can have a sliver end fixing device which can be brought into action on the sliver end. In principle, this can be designed differently, but training as a spray device has proven to be particularly advantageous. With the help of the spray device, the sliver is sprayed before being introduced into the feed device and thereby solidified. According to a further advantageous embodiment of the subject matter of the invention, the spray device can be designed as an icing device.

The introduction of the sliver into the feed device can also be facilitated in that a feeder is connected upstream of the feed device. It is particularly partly if not only a single, but at least two belt holders are connected upstream of the feed device, the two belt holders of the feed device being optionally deliverable or can be brought into a standby position.

According to an expedient embodiment of the subject matter of the invention, the at least one band holder can be opened and closed. This at least one belt holder can advantageously be controlled as a function of the movement and / or position of the belt feeder.

The at least one belt holder is preferably designed as a feeder.

In order not to have to provide the individual elements that are required for picking up and transferring the beginning of the tape to the feed device again at each work station, it is preferably provided that the tape feeder and possibly other provided auxiliary devices such as the beginning of the tape preparation and clamps a maintenance device movable along a plurality of similar workstations are arranged.

According to a further advantageous embodiment of the device according to the invention, the belt holder and possibly other auxiliary devices, such as the belt preparation device and clamps, are alternatively arranged on the transport device. So that one and the same transport device can also work together with different machines or devices, it is provided in a further expedient embodiment of the subject matter of the invention that the belt feeder and possibly other auxiliary devices such as the tape start preparation device and clamps are mounted in a height-adjustable manner. The invention enables the automatic application of the sliver to the feed device of a textile machine in a simple manner. This ensures that downtimes are reduced, since it is not necessary for the operator to be immediately on hand when a sliver runs out in order to carry out the sliver application. Rather, this can be done by a maintenance device which, if desired, can also carry out the re-spinning in the case of a spinning machine.

The invention is explained in more detail below on the basis of exemplary embodiments with the aid of drawings. Show it:

Figure 1 shows an open-end spinning device in side view with the device according to the invention;

FIG. 2 shows a device according to the invention in plan view with a sliver holding the sliver in a defined receiving position and a sliver feeder;

FIG. 3 shows a flow diagram with the work steps according to the invention;

FIG. 4 in cross section a can filled with fiber sliver with a sliver feeder according to the invention;

FIG. 5 shows a belt feeder in its transfer position in front of a feed device in a schematic side view;

Figure 6 shows a jug in plan view with a band feeder; FIG. 7 shows a jug in a side view with a tape feeder according to the invention;

FIG. 8 shows a side view of a detail from FIG. 7 in a modified form;

FIG. 9 shows a filling section in partial section and a tape take-up device designed according to the invention;

FIG. 10 shows a modification of the device shown in FIG. 9;

Figure 11 is a schematic plan view of the subject of the invention in connection with a filling station and an open-end spinning device;

FIG. 12 is a side view of a pot designed according to the invention;

FIG. 13 shows a top view of a tape preparation device designed according to the invention;

FIG. 14 shows a schematic illustration of a feed device and a bank feeder connected to it for tax purposes;

FIG. 15 shows a modification of the tape start preparation devices according to the invention in a schematic representation;

FIG. 16 shows a further modification of the tape start preparation device in a schematic representation;

FIG. 17 shows yet another embodiment of the tape start preparation device according to the invention in cross section;

FIG. 18 shows a schematic representation of the subject of the invention in connection with the delivery device of a textile machine;

FIG. 19 shows a schematic top view of the subject of the invention in connection with a card, a draw frame and an open-end spinning machine;

FIG. 20 shows a belt feeder according to the invention in a perspective view;

FIG. 21 shows a modified embodiment of the tape start preparation device according to the invention;

FIG. 22 shows a detail of the device according to the invention with a belt extractor in perspective;

Figures 23 to 25 a part of a spinning machine and one or more flat cans in different positions and views

Figures 26 and 27 in cross-section guides for the jug

FIG. 28 shows a plan view of a flat can dimensioned according to the invention; and

FIG. 29 shows a perspective view of a transport direction in front of an open-end spinning machine.

As already mentioned above, the subject matter of the invention can be used in conjunction with various belt processing or processing textile machines or devices; Below, a conventional open-end spinning device 1, which will now be described, is intended to serve as a concrete exemplary embodiment.

An open-end spinning device 1 is usually part of an open-end spinning machine 16, which has a large number of similar open-end spinning devices 1 arranged alongside one another on one or both sides of the machine. Each open-end spinning device 1 has a spinning element which, in the embodiment shown, is designed, for example, as a spinning rotor 10. The spinning rotor 10 is mounted in a known manner by means of a shaft 100 and is driven in the exemplary embodiment shown by means of a tangential belt 101. The spinning rotor 10 is arranged in a rotor housing 102, the interior 103 of which is connected via a suction pipe connection 104 to a vacuum source, not shown.

A brake 11 can be delivered to the shaft 100 of the spinning rotor, which is connected to an actuating lever 13 via a linkage 12 which is only schematically indicated. If the free arm of the actuating lever 13 is acted upon in the direction of the arrow P ₄ , the brake 11 comes to bear against the shaft 100 of the spinning rotor 10, so that the latter is braked. The mechanism, which consists of brake 11, linkage 12 and actuating lever 13, is suitably acted upon by an elastic element against the direction of arrow P ₄ , that is to say in the direction of arrow P ₅ , so that when an application is ended in the direction of arrow P _4, the brake 11 returns to its release position. According to FIG. 1, the elastic element, which acts on the mechanism consisting of the brake 11, linkage 12 and actuating lever 13, is designed as a compression spring 130 which is supported on the actuating lever 13 on its arm facing the linkage 12 and on a machine part (not shown).

To feed fibers into the spinning rotor 10, a feed device 2 is provided, which in the embodiment shown consists of a delivery roller 20 and a feed trough 21, which is pivotably mounted and is elastically pressed against the delivery roller 20 by a compression spring 22. Downstream of the delivery roller 20 is a dissolving roller 24 arranged in a housing 23, which during normal production combs fibers (not shown) from a sliver 4 fed to it with the aid of the feed device 2 from a can 41, which fibers are separated from the housing by a fiber 23 in the spinning rotor 10 extending fiber feed channel 25 are fed to the spinning rotor 10. The fibers are deposited in the usual way on a fiber collecting point in the spinning rotor 10, from where they are taken up by the end of a thread 44 and continuously integrated into the end thereof. The thread 44 is drawn off through a thread draw-off tube 26 with the aid of a pair of draw-off rollers 27 and wound up on a bobbin 28 which is driven in a known manner by a bobbin roller 29.

In the thread run between the thread take-off tube 26 and the winding roller 29 there is a thread monitor 14 which monitors the spun thread 44.

Elements that are not necessary for understanding the invention, such as, for example, thread tensioning bracket, traversing thread guide, thread return device and thread end preparation device, have not been shown in Figure 1 for the sake of clarity.

The open-end spinning device 1 is covered by a cover 105, which has a feed hopper 106, and is supported by a machine frame 107. A signaling device 15 is attached to the cover 105, e.g. in the form of a signal lamp, which is in control connection with the thread monitor 14 (usually with the interposition of a control device, not shown).

A belt feeder 3 is fastened to the machine frame 107 below the rotor housing 102. In the embodiment shown, this is done with the aid of a guide 30, in which the belt feeder 3 is slidably mounted transversely to the machine longitudinal direction. For this purpose, the belt feeder 3 has a rail or guide rod 300 which extends through the guide 30 and carries a stop 301 at its machine-side end. At its end facing away from the stop 301, the guide rod 300 carries a band holder 31 which, according to FIG. 2, has two band holders 32 and 33 arranged at a distance from one another.

The tape holder 32 is designed as a helical tape guide and has between its coils 320 and 321 a slot 322 which extends radially outward from the guide area for the fiber tape 4 enclosed by the coils 320 and 321.

The last-mentioned band holder 33 is located at a lateral distance a, which has a size which allows the sliver 4 delivered in a can 40 to be received between the band holders 32 and 33. According to FIG. me formed and consists of a fixed to the guide rod 300 clamping element 330 and a second, movably arranged clamping element 331. The clamping element 331 is acted upon by a compression spring 332, which in turn is supported on a spring mount 333, which is carried by the guide rod 300 . The clamping element 331 is thus held elastically in contact with the clamping element 330. In the exemplary embodiment shown, the free ends 334 and 335 of the clamping elements 330 and 331 are designed such that they move further and further apart from one another towards their free end. These two ends 334 and 335 thus form an insertion guide, which tapers in the transverse direction of the band course between the two band holders 32 and 33 and thus enables the automatic threading of the fiber band 4 in the direction of arrow P ₃ (see FIG. 1).

The belt feeder 3 is - as FIG. 1 clearly shows - so high above the can 41 that the sliver 4 extending from the receiving position, which is below the feeding device 2 but above the can 40, to the open-end spinning device 1 is passed over other cans 41 and cannot come into contact with the sliver 42 which is located in the can 41 placed between the feeding device 2 and the can 4 and which usually extends to above the upper edge of the can 41 .

A tape feeder 5 is provided to accommodate the sliver 3 extending between the two sliver holders 32 and 33. According to FIGS. 1 and 2, this consists of a controllable clamp in the form of a pair of overhung rollers 50, 51, of which the roller 50 can be driven by a motor 500 with the interposition of a clutch 501, while the roller 51 is designed as a loose roller, which is driven by the driven roller 50, in operation via the fiber sliver 4 inserted into the pair of rollers. This roller 51, designed as a loose roller, can be removed from the roller 50 by pivoting, so that a wedge-shaped gap 52 is formed between the two rollers 50 and 51. For the sake of clarity, the pivot mechanism for the roller 51 has not been shown in FIGS. 1 and 2.

The belt feeder 5 is also pivotally mounted as a whole on a rod 53 (see pivot point 530 in FIG. 2). An arm 54 extends laterally from the belt feeder 5 and is connected in an articulated manner to the armature 540 of an electromagnet 541.

The function of the device described above in the construction is now to be described (cf. also flow chart according to FIG. 3, in which the indispensable program steps D, E, H and I explained below were emphasized by a stronger border).

While the spinning station is still operating normally, a new can 40 must already be provided and the sliver 4 must be inserted into the sliver feeder 3 so that when the old sliver runs out, a new sliver is already ready to be taken up by the sliver feeder 5 and to be presented and handed over to the open end. Spinning device 1 is provided. The new sliver 4 is removed from the can 40, which is essentially placed under the sliver 3, and at its beginning

(Band start 43 - Fig. 2) inserted into the band holder 33 located above the can, which - automatically or by hand - by a simple movement in the direction of arrow P ₃

(Fig. 1) can happen. This is made possible by the fact that Ends 334 and 335 of the two clamping elements 330 and 331 form a conical insertion slot (or an insertion guide), and moreover in that the elastically mounted clamping element 331, contrary to the action of the compression spring 332, moves so far from the other clamping element 330 that the band ¬ beginning 43 of the sliver 4 is held securely near its free end between the two clamping elements 330 and 331. By moving the sliver 4 in the direction of the arrow P _ (see FIG. 2), the sliver 4 is inserted into the sliver holder 32, in which the sliver 4 is axially movable. The sliver 4 is now with a length section in a defined sliver take-up position (sliver template = program step D), ie in a defined path of predetermined length, above the can 40.

If the old fiber sliver 4 now runs out, the thread monitor 14 is actuated since the thread 44 breaks in the absence of the fiber sliver 4. The thread monitor 14 sends a signal to the signal device 15 of the open-end spinning device 1 in the usual way.

The tape feeder 5, which is initially in a rest position 5 ', is caused by this signal to move from the rest position 5' (see FIG. 1) transversely to the sliver 4 in the take-up position into the tape take-up position (FIG. 2). to move. Here, the two rollers 50 and 51 are spread apart and form a wedge-shaped gap 52, with which they take up the fiber sliver 4 with its sliver end as the new sliver start 43 between the two sliver holders 32 and 33 (sliver take-up = program step E). After this tape reception, the roller 51 is moved against the roller 50, so that the sliver 4 is clamped between the two rollers 50 and 51. Then the tape feeder 5 in front of the Feed device 2 of the open-end spinning device 1 is brought, the electromagnet 541 being excited and the rollers 50 and 51 being pivoted about the pivot point 530, so that this pair of rollers is arranged at right angles to the rod 53 (original position 5 '' - broken line illustration in Fig. 2). During this movement of the tape feeder 5, the sliver 4 with the tape start 43 is pulled out of the tape holder 33. When the belt feeder 5 moves up to the feed device 2, the fiber sliver 4 can slide freely through the belt holder 32 (sliver application = program step H).

Even after the sliver has been put on, the sliver 4 can remain in the sliver holder 32 for any length of time, namely until it is unthreaded - automatically or by hand - at any time, for example when a new sliver is to be inserted into the sliver feeder 3, since its axial mobility results from the tape holder 32 is not affected.

As already mentioned, there is a feed hopper 106 in front of the feed device 2, which facilitates the introduction of the tape start 43 into the feed device 2. After the beginning of the strip 43 has been introduced into the feed hopper 106, the pair of rollers consisting of the rollers 50 and 51 is driven, so that the sliver 4 with its beginning of the strip 43 passes between the delivery roller 0 and the feed trough 21 and is transferred to it is what it can now be fed to the opening roller 24 (tape transfer - program step I).

For this it is necessary that the feed device 2 is driven in coordination with the displacement movement of the belt feeder 5 or in coordination with the drive of the roller 50 of the belt feeder 5. For this purpose, the motor 500, the clutch 501 and the electromagnet 541 are in one common control device 93 is connected (FIG. 14), with which the drive of the feed device 2 is connected, possibly with the interposition of a machine-side control device 18 (see FIG. 18).

According to FIG. 14, a single drive 200 is provided for the delivery roller 20, which is controlled by the control device 93 and / or 18 (FIG. 18).

The synchronization of the tape application and the switching on of the feed device 2 can take place in various ways. Depending on the application movement of the belt feeder 5, i.e. Depending on the reaching of a certain distance of the belt feeder 5 from the feed device 2, the control device 93, which controls this movement, generate a control pulse for switching on the individual drive 200 of the delivery roller 20. During the further movement of the belt feeder 5 to the feed device 2, the delivery roller 20 is thus driven, which consequently can grasp the sliver 4 fed to it by the belt feeder 5 and can feed the opening roller 24 into individual fibers for opening.

However, it is generally not sufficient that the feed device 2 is only switched on in order to be able to take up the sliver 4 that has been put on. It is also important that there is no excess strip between the rollers 50, 51 of the belt feeder 5 and the feed device 2. The strip feed speed is therefore matched to the strip feed speed via the control devices 18 and 93. For this purpose, for example, the swiveling speed with which the belt feeder 5 approaches the feed device 2 is adapted to the peripheral speed of the feed roller 20 and thus to the feed speed of the feed device 2. With the aid of FIG. 14, a device is now described which is suitable for effecting this synchronization between the tape feed speed and the tape feed speed. For this purpose, a switching flag 202 is arranged on the delivery roller axis 201 of the delivery roller 20, which is driven by a single drive 200, and is scanned by a light barrier 203 (see light source 204 and photo cell 205). Corresponding commands are then delivered to the control device 93 via a line. The control device 93 controls the speed at which the belt feeder 5 approaches the feed device 2 and feeds the sliver 4 into the feed device 2 in accordance with this pulse sequence given by the delivery device 2. This speed of the belt feeder 5 is either the same as or even slightly less than the peripheral speed of the delivery roller 20, so that a loop formation in the supplied sliver 4 is avoided with certainty.

Alternatively, it can also be provided that the belt feeder 5 is brought up to the feed device 2 at any speed. The belt feeder 5 is then stopped and the motor 500 of the roller 50 is switched on. This motor 500 is now tuned to the speed of the feed device in such a way that the roller 50 either has the same peripheral speed as the delivery roller 20, or else the roller 50 is driven at a somewhat lower peripheral speed, so that the sliver 4 between the rollers 50, 51 and the feed device 2 is slightly warped.

After the sliver 4 has been introduced into the feed device 2 - which, depending on the training, can normally be assumed after a certain time or what - 41 -

supply of the pivoting movement of the belt feeder 5 should be the case - the belt feeder 5 is controlled so that it releases the sliver 4 and can return to its basic position. The pair of rollers consisting of rollers 50, 51 is stopped. This completes the tape application process.

A thread break was produced by the sliver 4 previously fed to the feed device 2. The spinning process had thus been interrupted, so that after the introduction of the new fiber sliver 4, spinning has to be started again (spinning = program step L). This re-spinning is carried out in the usual way by cleaning the spinning element, returning a thread end suitable for spinning down to the fiber collecting surface of the spinning rotor 10 or other spinning element, fibers being supplied to the fiber collecting surface by switching on the feed device 2 by appropriate timing connect to the end of the thread, which is then drawn off again from the spinning rotor 10 or other spinning elements (eg friction spinning elements) by the spool 28 and later by the pair of draw rollers 27. There are various piecing processes which can be used in connection with the method and the device according to the invention, for which reason a detailed description of piecing is not given.

The fibers which are detached from the beginning of the band 43 when the new sliver 4 is put on cannot be used for piecing due to the indefinite timing of the start of the sliver delivery by the feed device 2. Therefore, the fibers are prevented from being deposited in or on the spinning element before the piecing process during the insertion or application of the fiber sliver 4. This happens for example. - 42 -

shows that the fibers are sucked off by the usual spinning vacuum when the spinning element is stopped or slowed down considerably by intermittent braking and are thereby removed. But it can also be provided that an auxiliary suction is provided, which sucks the fibers on their way between the feed device 2 and the spinning element and thereby leads (removal of the beginning of the tape = program step J - see FIG. 3).

In the embodiment shown in FIG. 1, the spinning rotor 10 is braked for the reasons described during the initial supply of the sliver 4 to the opening roller 24 by actuating the actuating lever 13 in the direction of the arrow P ^ ge. Due to the negative pressure acting in the rotor housing 102 through the intake manifold connection 104, di fibers fed through the fiber feed channel 25 into the spinning rotor 10 are removed again from the rotor housing 102, so that the fibers in the spinning rotor 10 cannot form a fiber ring.

After such a length of the fiber ribbon 4 dissolved by the opening roller 24 has been removed that the beginning of the ribbon 4 now has the normal ribbon quality as is given during normal production, piecing is prepared, which - as mentioned - is carried out in the usual way For example, the feed device 2 is stopped for a predetermined time and only then started again again, so that a fiber ring is formed in the spinning rotor 10. On this fiber ring, a beginning of the thread 44, which is retrieved from the spool 2 and prepared for spinning, is placed and connected to the fiber ring, whereupon the withdrawal of the thread 44 starts again in a known manner.

Alternatively, it can also be provided that the fibers ga - 43 -

not only get the opportunity to get into the spinning rotor 10, but are already sucked off at the circumference of the opening roller 24 until the beginning of the thread 44 has been returned to the spinning rotor 10 on its fiber collecting surface. The removal of the fibers is then stopped and the fiber stream is fed back into the spinning rotor 10 so that it can connect to the thread 44 already located there, which is then drawn off in the usual way.

After attaching it is necessary to free the tape feeder 3 again. This takes place in that the sliver 4 is threaded out of the sliver holder 32 in the direction of arrow P ₂ (FIG. 2) (sliver unthreading program step M). Thus, the sliver is again free for inserting a new sliver 4 in preparation for a renewed feeding of a sliver 4 to the open-end spinning station 1 when the sliver 4 has run out. As already mentioned, this tape unthreading can take place at any time after the tape has been put on, if the tape holder 32 is designed in such a way that it allows the sliver 4 to move axially.

A prerequisite for a piecing process to be able to be carried out in the case of an open-end spinning device 1 is that the tape application process has been carried out successfully. For this purpose the application process is monitored and repeated if it has been determined that the application of the tape has failed. Success or failure can easily be determined by checking the sliver 4. If, after the transfer to the feed device 2, it is not drawn in by the feed device 2, then it is not transported either, but stands still (feed control = program step K). - 44 -

In order to be able to check the tape transport, a tape monitoring device 520 is provided according to FIG. 14. In the exemplary embodiment shown, this is essentially formed from the roller 50 and a sensor 503 and is thus arranged on the belt feeder 5. According to FIG. 14, the roller 50 has markings 502 which are scanned by the sensor 503 of a scanning device. To the fastest possible response of the device to reach Tast¬, are in the shown example Ausführungs¬ 502 the markers on the roll 50 is very densely arranged neben¬ each other by the markings 502, a maximum angular distance of 90 ° _ι however possible - depending on the roll ¬ knife - considerably less. The sensor 503 is connected to the belt feeder 5 or its control device 93, to which the motor 500 of the roller 50 and the electromagnet 541 for the roller 51 are also connected. A signal lamp 94 is also connected to the control device 93.

A certain time after the intended belt transfer to the feed device 2 - this time being predetermined by the control device 93 - the motor 500 assigned to the roller 50 is stopped and the sensor 503 is activated, which now determines whether this is not shown in FIG. 14 Sliver 4 has been safely introduced into the feed device 2 or not (import control - program step K). If the sliver 4 has been correctly inserted into the feed device 2, the sliver 4 introduced into the feed device 2 and fed through the delivery roller 20 to the opening roller 15 (see FIG. 1) also carries the roller 50 of the ribbon feeder 5, which passes through clutch 501 controlled by controller 93 has previously been disconnected from its engine 500. The sensor 503 thus delivers corresponding pulses to the control device 93, whereupon the rollers 50 and 51 release the sliver 4 and can return to their normal position.

If, on the other hand, this transfer has failed, the roller 50 is not driven, in contrast to the state described above, since the sliver 4 is not transported, so that the sensor 503 cannot deliver any pulses to the control device 93. The control device 93 now causes the signal lamp 94 to light up, so that the operator can initiate the tape application process again.

Alternatively, the tape application process can of course also be initiated automatically, the signal lamp 94 only being illuminated if the tape application has not been successfully completed even after several attempts.

The automatic repetition of the sliver application can take place in such a way that the sliver feeder 5 releases the sliver 4, returns to the sliver take-up position and there takes up the sliver 4 again in the manner described (program step E = sliver take-up) in order to feed the sliver 4 again to the feed device 2 to be able to supply.

If the insertion process has failed several times, it can be assumed that a further attempt will also be unsuccessful and intervention by the operator is required. For this reason, after a predetermined number of failed attempts, e.g. After three failed attempts (failed attempts count = program step N), an error signal is generated, whereby e.g. the signal lamp 94 mentioned is brought to light up (display of failed attempts = program step 0).

FIG. 20 shows a part of a perspective view modified configuration of a belt feeder 5 with the roller 50 driven by a motor (not shown in FIG. 20) and the roller 51, which is formed as a loosening roller. In the open receiving position, the wedge-shaped gap 52 already mentioned forms between the overhung rollers 50 and 51. The two rollers 50 and 51 are mounted in a housing 504, the side 505 of which faces the rollers 50 and 51 serves as a belt support and thus prevents the sliver 4, especially when it is being fed to the feeding device 2, from slipping out of the pair of rollers 50, 51. In addition, the two rollers 50, 51 are provided with a thread-like corrugation or profiling 506 and 511, which is helical. The profiles are inclined to the surface lines of the rollers 50, 51 in such a way that they approach each other when the rollers 50, 51 rotate in the feed direction, ie in the direction of the start of the strip 43. The corrugation or profiling 506 and 511 can also take over the task of the markings 502 shown in FIG.

When the roller 50 is driven in the direction of the arrow P ₁₉ , the roller 51 is driven via the fiber sliver 4 in the direction of the arrow P ₂₀ , a force being exerted on the fiber sliver 4 in the direction of the arrow P ₂₁ , through which the fiber ribbon 4 is moved in the direction of the side 505 of the housing 504 defining the gap 52 and forming a band support. Of course, the band support can also be formed in another suitable manner.

In the embodiment described with reference to FIGS. 1 and 2, the receiving position for the fiber band 4 is determined by the band holders 32 and 33 which are in the working position. In the embodiment shown, the two strap holders 32 and 33 are essentially on the same horizon valley level arranged. However, this is not an unconditional requirement. For example, the two tape holders 32 and 33 can also be arranged one above the other, with the principle that nothing essential changes for the tape take-up by the tape feeder 5. The belt feeder 5, which can possibly also be formed by the pair of rollers 50, 51 shown, then only has to be rotated by 90 ° in comparison to the embodiment shown in FIG. 1 in order to take up the sliver 4.

In order not only to keep the sliver 4 on a desired path of defined length, but also to secure it in the axial direction, in the embodiment described so far the sliver holder 33 is designed as a clamp. However, this is not absolutely a requirement. So the tape retention can also by other means such. B. suction air or a Velcro are er¬ ranges. Both strap holders 32 and 33 can also be designed as retaining means. A solution in which both strap holders 32 and 33 are designed both as a guide which permits axial movement and as a clamp which prevents undesired slipping out of the strap holder 32 and 33 is also possible.

It is also not necessary that the belt feeder 3 is slidably attached to the open-end spinning machine 16. If the belt feeders 3 protruding laterally from the open-end spinning machine do not interfere, they can also be rigidly attached to the machine frame 107.

For the implementation of the described method, it is also not a requirement that the belt feeder 3 is a separate device, but it is also possible to provide the receiving position in or on the can 40, etc., ie the can 40 itself as To provide tape feeder 3 and / or train and that Submit fiber ribbon 4 through the can 40 of the open-end spinning device 1 or other textile machine for inclusion by the ribbon feeder 5.

A first embodiment of this type is explained with the aid of FIG. As this figure shows, it is located in the center of the can 400, i.e. in the center of the fiber ribbon 4 deposited in the can 40, a space into which the ribbon beginning 43 projects. In order to securely hold the band end projecting axially into the interior of the can 40, which forms the beginning of the band 43 with respect to its introduction into this feed device 2 of the open-end spinning device 1, a length b of at least 100 mm and maximum has been found for this 200 mm is particularly advantageous. If the strap end is shorter than 100 mm, there is a risk that the strap end will be pulled out of the can center 400. If, on the other hand, the band end is longer than 200 mm, it is difficult to insert this end of the band into the center of the can 40. In addition, the resumption at a later point in time is extremely difficult and also leads to the fact that a longer strip section has to be separated and removed when preparing the strip end for insertion into the feed device 2 of the open-end spinning device 1.

According to FIG. 4, a belt feeder 55 is also provided, which, in contrast to the belt feeder 5 shown in FIGS. 1 and 2, is of pneumatic design. This belt feeder 55 consists essentially of a base body in the form of a tube 550, which is closed by a wall 551 at its front end which can be brought into the center of the can 400. The tube wall is formed as a sieve 552 on a surface that extends along a producer line over part of the circumference of the tube 550. The tube 550 is connected at its end not shown to a vacuum source, so that in the Area of sieve 552, a suction air stream flowing into tube 550 can be generated. If the belt feeder 55 is now inserted into the can center 400 and rotated about its longitudinal axis (see arrow P ₆ ), the sieve 552 arrives in the region of the belt end forming the later belt start 43 and holds it firmly.

The belt feeder 55 can now be moved vertically upwards out of the can center 400. He takes the end of the tape with him. The belt feeder 55 is now brought in front of the feed hopper 106 of the open-end spinning device 1 (FIG. 1), and the end of the belt which now forms the beginning of the belt 43 is moved by a suitable movement of the belt feeder 55 into this feed hopper 106 into the clamping area between the delivery roller 20 and the feeder Ulde 21 introduced so that the feed device 2 can take up the sliver 4 and transport it further.

In order to facilitate the later transfer of the fiber band 4 to the feeding device 2, it can be provided that the band feeder 55 is not moved to the extreme end of the fiber band 4 during the insertion movement into the can center 400, so that after the fiber band 4 has been picked up by the Ribbon feeder 55 extends a predetermined ribbon length beyond the end of ribbon feeder 55. This free end of the fiber band 4 can then be introduced into the feed device 2 by a movement through 180 °.

In the exemplary embodiment shown in FIG. 4, the screen 552 is divided into two sub-screens 552a and 552b by an intermediate wall which merges into a longitudinal wall 553 of the essentially tubular belt feeder 55. As a result, two chambers 554 and 555 are formed in the belt feeder 55, each of which is optionally connected to a not shown by switching valves (not shown) Can be vacuum or connected to an overpressure source.

During the reception of the sliver 4, both the chamber 554 and the chamber 555 are subjected to negative pressure. The belt feeder 55 is then brought into the correct position for the transfer of the sliver 4 to the feed device 2, which can be done both by rotating it in the direction of arrow P ₆ about its longitudinal axis and by pivoting it through 180 °. If the belt feeder 55 is then in front of the feed hopper 106 (see FIG. 5), the chamber 554 is initially pressurized so that the beginning of the belt 43 is blown into the feed hopper 106. The belt feeder 55 is then raised in the direction of the arrow P ₇ until the partial screen 552b also reaches the area in front of the feed hopper 106. Overpressure is now also applied to the second chamber 555, so that the fiber band 4 can continue to enter the feed hopper 106 and the feeding device 2. Since the air conditions in the chambers 554 and 555 have to be switched as a function of the position of the belt feeder 55 relative to the feed device 2, it is advantageous if this changeover takes place as a function of the movement or position of the belt feeder 55, but one is Time control for this purpose is also conceivable.

If necessary, the screen 552 can also have more than just two sub-screens 552a and 552b and correspondingly more than only two chambers 554 and 555, which are then also individually controlled, as is shown below using the example of a belt depositer with the aid of FIG. 9 is explained.

It is not necessary to provide the receiving position in the center of the can 400, as is the case with the aid of the FIG. 4 shows the case shown. FIG. 6 shows an alternative solution, in which the band end 430 extends outward beyond the can rim 401 and hangs down outside the can 40, and here, as in the exemplary embodiment described above, the band end projecting downward should have a length that is between 100 mm and 200 mm. In this case too, a belt feeder 56, which is designed essentially in the same way as the belt feeder 55 shown in FIG. 4, can be used. The belt feeder 56 is attached to the free end of a swivel arm 560 which can be rotated about a swivel axis 561. The pivot axis 561 is located at the end of a support arm 562, which can be placed with its pivot axis 561 in the center of the can 40 for receiving the band end 430. Of course, the belt feeder 56 is connected to corresponding vacuum or pressure sources via lines, not shown, so that corresponding suction or compressed air flows can be generated in the belt feeder 56. The support arm 562 is mounted in a suitable manner on the open-end spinning machine 16, expediently with the aid of a device which can be moved along the machine and which is thus enabled to operate more than just one open-end spinning device 1.

To accommodate the end of the band 430, the swivel arm 560 with the band feeder 56 is brought into the position shown in FIG. 6, in which the swivel axis 561 is located essentially in the center above the can 40. Now the swivel arm 560 is pivoted by at least 360 ° along the can edge 401, so that the belt feeder 56 surely sweeps past the belt end 430 and takes it up in a defined manner due to the suction air draft prevailing in it.

Otherwise, this belt feeder 56 works in the same way White as that belt feeder 55 which is described with the aid of FIGS. 4 and 5.

Alternatively, it is of course also possible to provide another arm instead of a swivel arm 560 if the can 40 is given a rotary movement instead of the arm. All that is essential is the relative movement between the fiber belt 4 and the belt feeder 56, so that the fiber belt 4 reaches the area of the belt feeder 56 and can be picked up by them.

The mechanical and pneumatic design, as described above, is merely a matter of design examples. Other designs for taking up the fiber band by adhesion due to frosting or by electrostatic charging are also possible.

On the basis of FIGS. 1 and 2 it was shown that the belt holder 31 can be attached to the spinning machine (machine frame 107). Figures 4 and 6 show that the jug can serve for the correct presentation of the tape. It is of course also possible to attach a tape feeder 3 to the can 40 in a fixed or detachable manner. FIG. 7 shows an example of this, in which the tape feeder 3 has a tape holder 310 which is detachably attached to the can 40. The band holder 310 has a ring 311 which is fastened to the outer circumference of the can 40 with the aid of a snap closure 312. At several, at least two places on the circumference, the ring 311 has upwardly projecting bearings 313 which carry a resilient clamping element 314. The bearings 313 have an arm 316 with respect to the pivot axis 315 for the clamping element 314 on their side facing away from the ring 311, on which a compression spring 317 is supported. The Compression spring 317 is also supported on an arm 318 of the clamping element 314. The arm 316 of one of the bearings 313 ends in a band holder 323 designed as a band guide, which in the embodiment shown is opened in the form of a "U" on the side facing away from the bearing 313 and forms a band feeder 3. As FIG. 7 shows, the sliver 4 is inserted into this sliver holder 323.

In order to ^"keep daε strip end 430 with more certainty, which in particular for the transport of the can by a not-shown filling station, for example at a range of 7 (εiehe Figure 11), to open-end spinning apparatus 1, ie in the Aufnah¬ mestellung at the 8, the band holder 324 has been modified somewhat compared to the band holder 323 of Fig. 7. In the embodiment shown in Fig. 8, a further lever 325 is arranged on the pivot axis 315, in which the compression spring 317 shares is supported on the arm 316 of the bearing 313. In this way, the lever 325 forms an elastic clamp together with the arm 316.

Both in the embodiment according to FIG. 7 and in the embodiment according to FIG. 8, the strap end 430 hangs down from the strap holder 323 or 324 and can be picked up by a strap feeder in the manner shown in FIGS. 4 and 6 for the transfer of the sliver 4 to the feed device 2.

The device according to FIGS. 7 and 8 is particularly suitable for the manual insertion of the fiber sliver 4 into the sliver holder 323 or 324, since the ring 311 can generally only be placed on the can 40 after this can 40 has moved the distance 7 ( see FIG. 11) at which it was filled. Depending on the mode of operation, the tape end 430, which forms the beginning of the tape in further operations, can be placed in its ready position or in its receiving position by inserting it into the tape holder 323 or 324. Depending on the way of working, which - as described - can be modified in a variety of ways, the fiber sliver 4 then remains in this tape holder 323 or 324 for the transport and possibly for further steps such as preparing the tape application or the tape application itself.

The tape feeder 3 fastened to the machine frame 107 according to FIG. 1 can be constructed in a similar manner to the tape feeder 3 shown in FIGS. 7 and 8 and likewise have only a single tape holder 323 and 324 instead of two tape holders 32 and 33. Alternatively, it is of course also possible to design the belt feeder 3 placed on the can 40 according to FIG. 1, so that here too a length cut of the beginning of the belt reaches a defined path of a predetermined length.

Both in the embodiment of the tape feeder 3 according to FIG. 1 and also according to FIG. 7 or 8, the tape feeder 3 is arranged in a vertical distance above the upper can rim 401, so that the fiber tape 4 is sufficiently high above other cans 41 (see FIG. 1) Feeder 2 can be brought.

FIGS. 23 to 25 show a further modification of a device in which the band end 430 is inserted into a holder when it is brought into the receiving position, in which the fiber band 4 remains inserted during further steps of the band application. FIG. 23 shows a flat can 411 in a side view. Such a can formation will be discussed in more detail in connection with FIG. 12.

The can 411 is shown to better show the arrangement from its operating position below a delivery device 2 of the spinning machine. This delivery device 2 comprises a conventional delivery roller 20 and has a recess 206 for receiving a novel trough lever 210, which is now attached to the can 411 by a rod 319. When the can 411 is moved from the position shown in FIG. 23 to the left into its operating position (FIG. 24), the trough lever 210 engages in the recess 206, so that a strap end 430 held by the trough lever 210 interacts the delivery roller 20 is brought. By rotating the delivery roller 20, the sliver 4 is pulled out of the can 411 and introduced into the spinning position.

FIG. 25 shows three such open-end spinning devices 1, each with a delivery device 2 and a can 411 associated with this spinning device 1 together with its rod 319. The cans 411 are in their operating position by guides 164 and 165 in the vicinity of the upper and / or lower end of the Can 411 led.

FIGS. 26 and 27 each show a variant for the formation of guides for a can 40, 41 or 411. According to FIG. 26, the can stands on rails 164 which are fastened to the bottom 19 below the open-end spinning devices 1. Additional guides 165 can be provided for the side walls of the can, as has already been shown in FIGS. 23 and 25.

In a variant according to FIG. 27, the can 411 is above the bottom 19 of rail-like guides 166 in the machine frame 107 worn. For this purpose, each can 411 is provided on the upper edge with a ledge 412 protruding outwards, which slides on the guides 166.

In both variants (FIGS. 26 and 27), according to the exemplary embodiment shown, the can walls have inwardly projecting edges 413 at the lower edge, which carry a loose can bottom 414 in each can 411. The can bottom 414 can be moved relative to the can walls by means, not shown, provided on the machine, i. H. by external action - the jug 411 itself is not provided with any means to cause the jug bottom 414 to move relative to the side walls. This arrangement is expedient because the introduction of the fiber ribbon 4 into the open-end spinning devices 1 does not cause the fiber ribbon 4 to warp. The fiber sliver 4 can therefore extend from the delivery device 2 to the can bottom 414, the fiber sliver 4 being drawn into the open-end spinning device 1 by the delivery device 2, without causing misalignments (yarn number fluctuations).

The loose can bottom 414 also enables the can 411 to be filled with tape loops according to a predetermined pattern.

FIG. 9 shows an automatically operating device which enables the sliver 4 to be placed in a position required for later picking up.

After a can 40 has been filled on the line 7 (FIG. 19), of which only the turntable 6 is shown in FIG. 9 (can filling = program step A - see FIG. 3), this can 40 is moved from below the turntable 6 removed, so that the space below the turntable 6 is now free. A tape feeder 61, which in principle is like the tape feeder 55 or 56 is formed and, like this one, has a divided screen 552 as well as several optional chambers 554, 555 and 556 which can be connected individually to a vacuum or to an overpressure source, is now moved in the direction of the arrows P ₈ under the turntable 6 and via the The outlet opening 60 is brought into a position 61 ', as a result of which the sliver 61 detects the deflected sliver 4. This fiber band 4 is then cut in the usual and therefore not shown manner between the belt deposit 61 and the turntable 6.

The sliver 61, which takes up the sliver 4 in its position 61 ', can now position the sliver 4 in a defined position in the center of the sliver windings in the can 40 (see FIG. 4), on the circumference of the can 40 via the can edge 401 ( see FIG. 6) or place it in a belt feeder 3 placed on the can 40 (FIGS. 7 and 8) (belt storage = program step B - see FIG. 3). This tape storage position is referred to below as the standby position.

The can 40 is now transferred with the εo deposited end of the tape to the open-end spinning device 1 (FIG. 1) in the receiving position, where a new sliver 4 is to be made available and where the sliver 4 is previously in use with the aid of FIGS. 4, 6, 7 or 8 is recorded for the transfer to the relevant feed device 2.

As a comparison of FIGS. 4, 6, 7, 8 and 9 shows, both the ready position and the receiving position can be provided on the can 40, from which the sliver 4 to be fed to the feed device 2 is to be removed. Depending on the design of the tape dispenser 61 or tape feeder 5, 55 or 56, this readiness or the receiving position can either be in the center of the can 40 or in its vicinity. catch area may be provided.

It is also possible to deposit the fiber ribbon 4 in the manner described at the filling station (section 7) by means of a ribbon deposit 61 on or in the can 40 in the ready position, the can 40 with the fiber ribbon 4 deposited in the εo manner to the relevant feeding device 2 to bring where the fiber tape 4 can be picked up and inserted into a tape feeder 3 (see FIG. 1) by a tape receiver (not shown), which can in principle be designed like the tape dispenser 61 or tape feeder 55 or 56 described , so that it can be picked up there by a belt feeder 5, 55 or 56 and transferred to the feed device 2. If desired, the tape pickup can also direct the fiber tape 4, i.e. without the interposition of a separate tape feeder 3, to the tape feeder 5, 55 or 56, so that the tape pickup also takes over the function of a tape feeder in this case.

FIG. 10 shows another device in which the movable separating web 620 of a belt separating device 62 is arranged in the rotating plate plate 600 receiving the rotating plate 6. With the Unterεeite the turntable plate 600 εowie with the Trennεteg 620 ^_ operates a clamping fork 621 together. As FIG. 10 shows, the separating fork 621 is moved from the bottom upwards towards the underside of the turntable plate 600, so that the separating fork 621 presses the fiber band 4 against the underside of the turntable plate 600. The separating web 620 is now moved down between the two prongs 622 of the separating fork 621 and in doing so exerts an ever increasing pressure on the fiber ribbon 4 until it finally breaks.

It is of course necessary that the turntable 6 be in a very specific relative position for this separation process to the tape cutting device 62. For this reason, a switching flag 601 is provided at a suitable point on the turntable 6 and is scanned by a sensor 602, which is connected via lines 603 in a suitable manner to a control device (not shown). This control device, not shown, acts on the drive of the turntable 6 and stops it when the turntable 6 is in the desired position for severing the sliver 4. The can 40 has been shifted for the separation of the sliver 4 by a predetermined distance in such a way that the distance between the can edge 401 and the separating web 620 corresponds exactly to the length b by which the band end 430 should laterally hang down on the can 40. Here, the can 40 can be equipped with two lugs 402 (see also FIG. 12), which hold this strap end 430 between them.

According to FIG. 10, when the can 40 is pushed out of the path 7, a new can 410 has been pushed under the turntable 6.

The defined positioning of the band end 430 on the can rim 401 can, however, also be carried out in another suitable manner. For example, the can 40 is moved out of the filling station after it has been filled at the filling station - which in the case of the section 7 described is formed by its delivery head 70 and the space below it - without the sliver 4 being supplied beforehand by the delivery head 70 is ended. With this can transport out of the filling station, the fiber ribbon 4 supplied arrives at the trailing side of the can 40 and thus in a largely defined position. In coordination with the can transport movement, the sliver feed is stopped in such a way that the belt end 430 protruding beyond the can edge 401 does not exceed the desired length b. If the fiber ribbon 4 is now cut through in a suitable manner, for example as previously described in connection with FIG. 10, the ribbon end 430 hanging from the can edge 401 outside the can 40 also has a length b within the desired tolerances.

To improve the positioning of the band end 430 on the can rim 401, a device can be provided on the delivery head 70 or on the underside of the turntable plate 600, by means of which the fiber band 4 is placed in the center with respect to the direction of extension of the can 40 and which, for example, in the form of two Movable band centerings 74, 740 (see arrows P ₉ and P ₁₀ ) are formed transversely to the direction of can ejection (see arrow P ₁₂ in FIG. 11). The band centerings 74, 740 are located on the delivery head 70 at a point between the outlet opening 60 of the rotary plate 6 and the can rim 401 of the can 40 after it has left the filling station.

While the can 40 is being filled in the filling station and also while it is being ejected from the filling station, the two band centers 74 and 740 are at the same level as the sliver 4 on both sides of the sliver 4 extending from the delivery head 70 to the can 40. If the ejection movement has ended or at least has ended, the tape centerings 74, 740 are brought closer to one another, grasp the sliver 4 and bring it to the center line of the can web between the filling station and the subsequent rest position of the can 40 Band end 430 to lie in the middle of the extension direction (arrow P ₁₂ ) on the trailing can side on the can rim 401.

So that the fiber sliver 4 is securely between the noses 402 reaches, the can 40 has guides which hold this can 40 in the desired relative position to the section 7, ie to the turntable 6. This is explained below with reference to FIG. 11, which shows a route 7 with its delivery head 70, a vehicle (transport car 8) for transporting the can 40 from the route 7 to the open-end spinning device 1 and the open-end spinning machine 16 with one Variety of open-end spinning devices 1 shows.

So that the can 40 does not lose its orientation from the delivery head 70 of the line 7 to reaching the pick-up position through the band start 43 in the vicinity of the open-end spinning device 1, the can 40 has a guide which is guided by guides on the line 7 and on the open Spinning machine 16 works together. According to the embodiment shown in FIG. 11, the can 40 has a rectangular profile, the sides 403, 404, 405 and 406 of which serve as guides. The guides formed by pages 403 and 405 work together with guides 700 and 701, between which the cans 40 are conveyed under the delivery head 70 and later out of their position under the delivery head 70. Pages 404 and 406 also serve as guides for cans 40 and work together with guides 702 and 703.

The can 40 is presented to the line 7 in the usual and therefore not shown manner. It is then filled in its position under the delivery head 70 (program step A, FIG. 3). After the can 40 has been filled, it is ejected in the direction of the arrow P ₁₂ from the path 7 and the strip end 430 is brought into the desired position, that is to say into its ready position, from which it can later be taken up again for the further work processes (Program step B). The tape end 430 is secured in this position, which by the two noses 402 can happen (program step C). The can 40 is then pushed along the arrow P ₁₃ and possibly P _Ϊ onto the _trolley 8. The transport car 8 also has guides 81, 810, 811 and 812. The can 40 is thus secured against rotation during the entire transport period and therefore cannot change its relative rotational position during its entire transport either with respect to the route 7 or with respect to the transport car 8 .

The fiber sliver 4 is provided in the manner described above, namely according to the embodiment shown in FIG. 10 between the noses 402. The transport carriage 8 with the can 40 deposited thereon and possibly one or more further cans is now moved along line 80 to the open-end spinning machine 16 in front of an open-end spinning device 1, where a new can 40 is required. There are also guides 160 and 161 per open-end spinning device 1, so that the can 40 cooperating with these guides can be brought into its receiving position below the open-end spinning device 1 without changing its rotational position relative to the open-end spinning device 1 (Program step D). The recording of the fiber band and the transfer of the same to the open-end spinning device 1 take place in the manner described above (program steps E, H and I).

Of course, it can be provided by suitable measures that the lugs 102 or the free end of the belt are not located on the side of the can 40 facing away from the open-end spinning device 1, but rather on the side facing the open-end spinning device 1. This can be done by the fact that the transport carriage 8 - in contrast to the embodiment according to FIG. 11 - is not discharged to the right, but to the left, and the cans 40 there are open-end Spinning devices 1 are supplied. On the other hand, it is possible to turn the transport carriage 8 by 180 ° at the beginning, during or after the end of its transport, so that the cans 40 are then fed to the open-end spinning device 1 to be operated in the desired position. Alternatively, it is also possible to provide a rotary plate (not shown) per can 40 on the transport carriage 8, so that the cans 40 can be brought into the desired rotary position by rotating these rotary plates, in which the sliver 4 can then be brought with the help a simple belt feeder 5 (FIG. 2) or 55 (FIG. 4) that is not arranged on a swivel arm 560 (see FIG. 6) can be received.

However, it may also be desirable - particularly in the case of flat cans 411, which will be described later - that the free end of the band is located on the side facing away from the center of the machine, since the fiber band 4 is then still accessible for the reception when it is the jug is already in its operating position on the machine. The cans are then, if necessary, brought into the desired rotational position in the same way as described above.

In order to move the cans 40 from the transport carriage 8 to their position below the open-end spinning device 1 to be operated, corresponding, not shown, pushing bars can be provided on the transport carriage 8, which can be controlled from the open-end spinning device 1. For this purpose, the transport carriage 8 is connected in a manner not shown to the open-end spinning device 1 or to the central control device (FIG. 18) of the open-end spinning machine 16.

The guides for maintaining a defined position the cans 40 can be designed differently, as the exemplary embodiments described above show. For example, the guides connected to the can 40 can be detachably attached to this can 40 or to the tape feeder 3 carried by the can 40 and, if desired, through correspondingly flat outer surfaces of the can 40 (see pages 403, 404, 405 and 406 of the cans 40) shown in FIG. 18) or of the ring 311 (see FIG. 7).

Another design of the jug (jug 411) and its guidance is shown in FIG. 12. According to this embodiment example, the jug 411 does not have a round profile, but is elongated. Its two longitudinal sides can thus serve as a guide, with the help of which the can 411 is guided from the route 7 to the open-end spinning device 1 between two guides 700, 701 or 81, 810 or 160, 161 (see FIG. 11). Also in this embodiment, if desired, can be provided on the can 411 noses 402, between which the band end 430 is held, that - as described - with a length b protrudes outwards beyond the edge of the can 411 and there hangs down.

FIG. 29 shows a series of twenty-three spinning positions of an open-end spinning machine and a transport carriage 8 for transporting flat cans (cans 411) and for exchanging such cans 411 at the spinning positions. The transport carriage 8 comprises a can-receiving part 82 and two end parts 83, 84. The can-receiving part 82 is divided into compartments by intermediate walls 820, each compartment being suitable for receiving a flat can (can 411) by moving the flat can in its longitudinal direction.

Each end portion 83, 84 carries a post 830, and the posts on their side carry a bar 831, which serves as a guide rail for a can manipulator 85. The can manipulator 85 can be moved in the longitudinal direction of the bar 831 and can thereby be delivered to the individual compartments of the can-receiving part 82. The can manipulator 85 has its own rail 850, which is perpendicular to the beam 831 and serves as a guide rail for a can slide 851. The can slide 851 comprises a gripper (not shown) which, by moving in the direction of the central plane of the open-end spinning machine, pushes the can 411 from the transport carriage 8 into the operating position in the machine or by moving from the central plane of the Machine pulls the can 411 out of its operating position onto the transport carriage 8.

Each end part 83, 84 of the transport carriage 8 also has wheels 86 which enable the movement of the vehicle in directions perpendicular to the long side of the cans which have been taken up. The transport carriage 8 comprises a drive (not shown) and possibly a controller which controls a steering system (not shown) for the wheels 86. When the trolley 8 leaves the route 7 (FIG. 19), it is loaded with ten full cans, a compartment for receiving an empty can remaining. A suitable number of cans 411 is between two and twelve.

The transport carriage 8 is guided by a system control to a selected spinning station at which the can 411 is to be replaced. By means of a suitable positioning system (not shown here), the transport carriage 8 is positioned beforehand in such a way that the empty compartment is aligned with the spinning station (open-end spinning device 1) where the can 411 is to be exchanged. The can manipulator 85 is assigned to the empty compartment, and the can slide 851 is moved inwards relative to the machine, so that its gripper (not shown) moves the can be exchanged can 411. By moving the can slide 851 outwards relative to the machine, the can 411 to be exchanged is pulled into the previously empty compartment of the transport carriage 8.

The transport carriage 8 is then moved to align a compartment filled with a full can 411 with the relevant spinning position. The can manipulator 85 is moved along the bar 831 in order to deliver the can manipulator 85 to the new can 411 to be introduced. By moving the can manipulator 85 inwards (opposite the machine), this full can 411 is then moved into the operating position ".

The transport carriage 8 can now be delivered to a further selected spinning station, where the procedure is repeated, the empty compartment on the transport carriage 8 now not being at the original location, but at the location of the full can 411 last delivered to the machine. By repeating this procedure, the empty compartment is moved step by step, until all full cans 411 have been introduced into the open spinning machine and replaced by empty (or at least to be exchanged) cans 411. The transport car 8 is then moved back to route 7.

The can-receiving part 82 of the transport carriage 8 need not be rigidly connected to the end parts 83, 84 of the transport carriage 8. As indicated in FIG. 29 by double arrows 821, the part 82 can also be height-adjustable relative to the end parts 83, 84, in order for the cans 411 to be of the same height from the part 82 to their loading or unloading position on the line 7 or the open end. To be able to move the spinning machine or an other textile machine or device - and of course also in the opposite direction. In a similar way, too other elements such as B. the tape feeder 5, tape start preparation device 9 (which will be described below) in height-adjustable manner on the transport carriage 8.

The flat can 411 shown in FIGS. 12 and 28 has two parallel side walls 415, 416 which define the can width i. The can 411 also has two end portions 417, 418 which connect the side walls and define the can length j. FIG. 28 shows rounded end pieces 417, 418, but these may instead be perpendicular to the side walls 415, 416 or may be formed as polygons. The jug length j is significantly larger (e.g. three to four times larger) than the jug width i, which is essentially the width of a spinning station, i. H. corresponds to an open-end spinning device 1. In this way it is achieved that the capacity of the flat can 411 corresponds to the capacity of a conventional round can. The capacity of a flat can 411 should correspond to the capacity of a round can with a diameter of 450 to 500 mm. If it is assumed as an example that the diameter of a conventional round can is approximately 457 mm, then a flat can (can 411) according to FIG. 28 with a width of 230 mm and a length of 780 mm has a somewhat larger capacity than the round can . In other words, the length of the flat can does not have to be twice the round can diameter in order to result in the same capacity.

The height of the can (round or flat can) is given by the construction of the spinning machine frame, since the cans 40, 41 or 411 have to be placed under the spinning position.

It is advantageous if the beginning of the tape 43 (which is due to the Band end 430 is formed) is not fed unchanged to the open-end spinning device 1, but is even more particularly prepared for transfer to the feed device 2. By external influences during the time from the insertion of the fiber sliver 4 into the sliver holder 31 (FIG. 2) or 323 (FIG. 7) or 324 (FIG. 8) or also inside the can 40 (FIG. 4) or on the can rim 401 (FIG 6) namely the sliver 4 can be shifted or pulled further out of the can 40, 41 or 411, so that ^" the state and / or the length of the sliver 4 changes. Thus, it is not always guaranteed that the beginning of the sliver 43, with which the fiber sliver 4 is to be fed to the open-end spinning device 1, always has the same quality. In order to ensure that the desired quality of the sliver start 43 is nevertheless achieved, it is provided that the sliver start 43 to be applied is provided To this end, a tape start preparation device 9, as shown in FIG. 13, is particularly useful.

A controllable terminal 91, which in principle differs, is assigned to the band holder 31 in the embodiment as shown in FIG. 2, or in the embodiment as shown in FIG. 13, or in another embodiment can be trained. According to FIG. 13, this clamp 91 is arranged stationary and has a carrier 910, on whose one end a stop 911 is arranged. At the opposite end, an electromagnet 914 is arranged on the carrier 910 and is connected to a counter-stop 916 via an armature 915. This counter-stop 916 can be brought into contact with the stop 911 or clamp a fiber sliver 4 between it and the stop 911. The armature 915 is guided by a spring support 912, which in turn is supported by the carrier 910 between the counter-stop 916 and the armature 915 provided iεt. A compression spring 913 is supported at one end on the counter stop 916 and at the other end on the spring support 912. If the electromagnet 914 is de-energized, ie in the dropped state, the compression spring 913 acts on the counter-stop 916, so that the fiber tape 4 is clamped between it and the stop 911. If, on the other hand, the electromagnet 914 is excited, the counter-stop 916 is removed from the stop 911 counter to the action of the compression spring 913, so that the sliver 4 is released.

The clamp 91 works together with the belt feeder 5. In the embodiment shown in FIG. 13, a device serves as the belt feeder 5, which is designed essentially in the same way as the clamp 91. On an arm 57 that can be pivoted about a pivot point 570, a clamp 512 is arranged at its free end, which has a stop 571 with which a counter-stop 573 acted upon by a compression spring 572 cooperates. The counter stop 573 is connected to the armature 574 of an electromagnet 575. The armature 574 is guided by a spring support 576, which also supports the compression spring 572 acting on the counter stop 573. A pinion 577 is mounted on the pivot axis 570, with which a toothed rack 578 which can be driven by a drive 579 cooperates and which can be moved back and forth in the direction of the double arrow P ₁₆ . The rack 578 with its drive 579 thus forms a drive for changing the relative distance between the clamp 91 and the clamp 512 of the belt feeder 5. The two clamps can be controlled synchronously, at least with regard to their closing, in order to ensure the separation function .

By hand or by means of a suitable device, for example in the manner of the described tape depositors or tape recorders, the fiber sliver 4 is then inserted into the two clamps (from the stop 571 and counter-stop 573 existing terminal 512 and terminal 91) inserted. Then, by moving the toothed rack 578 in the direction of the stop 571, the clamp 512 of the belt feeder is pivoted such that it is removed from the clamp 91. The sliver 4, which is held in the clamps 91 and 512, is thus pulled apart, until it tears. For this purpose, a minimum distance c is provided between the shown initial position of the clamp 512 and the clamp 91, which is equal to the stack length (average stack length) of the fibers contained in the fiber band 4, ie, the stack length of the fibers contained in the fiber band 4. The two clamps 91 and 512 are brought to such a distance d from one another that essentially corresponds to twice the (central) fiber stack length. In this way, it is ensured that the sliver 4 can really tear (FIG. 2 - slitting to length = program step F).

As shown in dashed lines in FIG. 13, a tape start 43 is created in this way, which is particularly suitable for insertion into the feed device 2. Since the fiber ends are distributed fairly evenly in the sliver 4, the tearing of the fiber ribbon 4 causes the ribbon beginning 43 to be thinned and tapered, so that it is particularly suitable for insertion into the feed hopper 106 (see FIG. 1).

The fiber sliver 4 is thus not only cut to length in this way (program step F), but also simultaneously sharpened (tape sharpening = program step G).

The two electromagnets 914 and 575 and the drive 579 of the rack 578 are common to the individual elements described with reference to FIG Control device 93 connected, which ensures that the movement of the clamps 512 and 91 of the tape start preparation device 9 takes place after the counter stops 573 and 916 abut against the stops 571 and 911, respectively.

As shown in FIG. 2, it is also possible to cut the sliver 4 to length by using a cutting device 34, e.g. B. scissors or the like to be arranged on an arm 302 of the guide rod 300 of the belt feeder 3. This cutting device 34 simultaneously fulfills the function of a tape measuring device and can then be triggered manually or electrically in a manner not shown, if desired. If an electro-mechanical separation of the sliver 4 is not required, it may also be sufficient simply to provide the arm 302 with a scale (not shown) for the dimension of the length of the sliver start 43, then shortening the sliver 4 with the aid of a simple one , for example, can be done by hand in place of the cutting device 34 shown in FIG. 2. The cutting device 34 or the scale (not shown) thus forms a tape length measuring device which is attached to the tape feeder 3 and with the aid of which the length b of the tape start 43 desired for the tape application can be generated or checked. If the can 40 serves as a belt feeder 3, a marking on the circumference of the can can also be sufficient for this.

Instead of being pulled apart or cut through, this fiber band can also be separated in another way. It is thus possible to use an injector through which a medium is passed onto the fiber ribbon 4 (medium impulse). If necessary, thermal burn-through of the fiber band is also possible, in particular with natural fiber material in which the fibers The melting of the fibers is less than that of synthetic fibers.

The separating device can - as can be seen from the above description - be designed in various ways. Since a cutting device generates a rectangular profile of the band start 43, a device for pulling the fiber band 4 apart is particularly advantageous, since this produces an essentially wedge-shaped band start 43. In the latter case, the tape cutting device is formed by the tape start preparation device 9.

The fiber band 4 can also be pulled apart by turning the rollers 50, 51 backwards with the fiber band 4 clamped by the clamp 91; an additional terminal 92 is then not required. Such a measure can then be carried out with a tape length measuring device, e.g. can be combined in the manner of a light barrier 962 (FIG. 15) which controls the rollers 50, 51 in such a way that the strip end 43 is located in the region of this light barrier 962.

So that the fiber belt 4 can be pulled apart by the interaction of the clamp 91 and the rollers 50, 51, the clamp 91 cooperating with the belt feeder 5 is connected via the control device 93 to the drive (motor 500) of the roller 50 of the belt feeder 5 in a control manner.

However, a monitoring device serving as a belt length measuring device can also be provided on the belt feeder 3, which monitors where the beginning of the belt 43 is located and then drives the rollers 50, 51 in one direction or the other until the end of the belt 43 on these monitoring parts located. The monitoring parts can be formed by a light barrier the one that, if desired, can be adjusted along the arm 302 in any desired position.

If desired, instead of a belt feeder 5 formed by a clamp 512, one such as that shown in FIG. 2 and which has two rollers 50 and 51 can also be used.

The tape feeder 5, as the above description shows, is part of the tape start preparation device 9 and is movable relative to the latter. On the one hand, this is necessary in order to be able to pick up the fiber band 4 in the receiving position and to be able to feed it to the feeding device 2. On the other hand, this mobility is expedient in order to bring the fiber band 4 to the desired length by pulling them apart. Although the other part of the tape start preparation device 9 can also be movably mounted, this mobility can be dispensed with in view of the mobility of the tape feeder 5. For this reason, in the exemplary embodiment shown in FIG. 13, the part of the start-of-tape preparation device 9 cooperating with the band feeder 5 and the band feeder 5 of this stationary part can be delivered.

The relative mobility between the parts of the tape start preparation device 9 does not have to take place by pivoting one or both of its cooperating parts. Other movements, e.g. Thrust movements, rotary movements etc. are naturally also conceivable.

FIG. 15 shows a further modification of the device described, in which the belt feeder 5 with its rollers 50, 51 are brought in front of the mouth 950 of a suction pipe 95 can. The free band end 430 is thinned and shortened by the suction draft prevailing in the suction pipe 95 or in the suction nozzle of the belt start preparation device 9, which can of course be switched on and off. The suction train acting in the suction pipe 95 thus forms a pneumatic belt cutting device.

As shown in FIG. 15, the belt feeder 5 is set in such a minimum distance c in front of the mouth 950 that it essentially corresponds to the average stack length of the fibers contained in the fiber belt 4. Since all of the fibers outside these areas defined by the minimum distance c are no longer held by the rollers 50 and 51, they can be pulled out of the sliver 4 and discharged with a correspondingly strong and possibly turbulent air flow.

In order that this shortening process can be carried out particularly quickly, a cutting device 96 is additionally provided in the suction pipe 95 according to FIG. This cutting device 96 has a knife 960 which, from a rest position in which it releases the interior of the suction pipe 95, can be moved transversely to the longitudinal course of the suction pipe 950 and cooperates with an anvil 961. The anvil 961 is designed as a roller or cylinder according to FIG. 15 and is mounted rotatably about its axis. The knife 960 is guided in the suction pipe 95 in a guide 951 and, with the exception of the stroke movement imparted to it, can therefore not perform any lateral movement. The anvil 961 designed as a roller, on the other hand, is mounted elastically. This has the effect that the knife 960 rotates the roller-like anvil 961 by an angle of rotation predetermined by the knife stroke in accordance with its predetermined stroke. As a result, the knife 960 cooperates with another location of the roll-like anvil 961. The anvil 961 is made of soft material in relation to the knife 960 and is therefore subject to with a bigger wear. Due to the possibility of rotation (with each stroke by the angle of rotation α), another starting point of the anvil 961 reaches the working area of the knife 960, so that non-uniform wear of the anvil 961 is avoided.

For the separation process, the fiber tape 4 is inserted so far into the suction tube 95 that the tape end 430 is passed between the knife 960 and the anvil 961 with certainty. If necessary, this can be monitored by a length scanner (e.g. a light barrier 962) between a light source 963 and a photodiode 964. This light barrier 962 is in control connection with the rollers 50 and 51 and the knife 960 via the control device 93 (see FIG. 14) and signals these elements that the fiber strip 4 is in the correct position. The rollers 50, 51 are stopped; The knife 960 is actuated and separates the band end 430. This is removed due to the prevailing suction draft. As a result of the negative pressure still prevailing in the suction pipe 95, the remaining end of the strip is also exposed to the suction draft and thinned and thereby sharpened.

The thinned, new end of the tape is in principle optimally prepared for insertion into the feed device 2. In order to ensure, however, that during the movement of the fiber band 4 from the suction pipe 95 to and into the feeding device 2, the quality of the new band beginning 43 is not impaired, it can be additionally confirmed (band end consolidation = program step P ). According to FIG. 15, a nozzle 965 serving as a band-end fixing device is provided for this purpose, which can spray a liquid which is suitable for the fastening onto the band beginning 43. In order to have no difficulties in the further processing of the fiber ribbon 4, the condition of the fiber ribbon 4 in the area of the ribbon start 43 should deviate little from the normal ribbon condition, that is to say it should only have an acute shape, but otherwise correspond to the normal fiber ribbon 4. For this reason, a medium that evaporates after a short time is particularly advantageous, whereby the time should of course be sufficient for the introduction of the beginning of the tape 43 into the feed device 2. For example, the beginning of the tape 430 can be sealed with a medium. that changes directly from the solid state to the gaseous state. In this case, the nozzle 965 is designed as an icing device which, when a gaseous medium, for example, emerges, causes it to change to the solid aggregate state by icing and later - as mentioned - to return directly to the gaseous state.

The band end fixing device need not be designed as a spray device. Other devices with which a fixing medium in a solid (or semi-solid), liquid or gaseous state can be applied to the beginning of the band 43 are also suitable for this purpose.

For the sake of clarity, the required control devices and connections have not been shown in FIG.

Just like the clamp 91 shown in FIG. 13, the band feeder 5 together with the suction pipe 95 already forms a band start preparation device 9 for itself, but also in combination with the cutting device 96. As described, this causes the band held back by the band feeder 5 ¬ de acting suction air flow an opening and partial dissolution of the tape end and thus a taper or sharpening the same. In this exemplary embodiment, the preparation of the tape start is done pneumatically and not by the movement of two elements of the tape start preparation device 9 or by turning the rollers 50, 51 of the tape feeder 5 backwards. A cutting device 96 is also not required for preparing the tape catcher 43 Lich, even if one is shown in FIG. 15.

FIG. 16 shows a further embodiment of the object of the invention, in which the two parts of the tape start preparation device 9 can also change their relative position to one another. Naturally, this can be done by the movement of the tape feeder 5 or by a movement of another part of the tape start preparation device 9 relative to the tape feeder 5 or else by a simultaneous movement of both the tape feeder 5 and another part 99 of the tape start preparation device 9.

In the embodiment shown in FIG. 16, a clamp 92 is connected upstream of the two rollers 50 and 51, in the direction of the strip start 43, which consists of a stationary clamping part 920 and a movable clamping part 922. In order to achieve a particularly secure clamping and thus retention of the fiber band 4, the two clamping parts 920 and 922 in the embodiment shown have interlocking profiles. According to FIG. 16, this is achieved in that the clamping part 920 has a concave clamping surface 921 and the clamping part 922 has a convex clamping surface 923. In the embodiment shown, these clamping surfaces 921 and 923 are provided with rounded profiles in order to ensure that the fiber band 4 is retained gently.

A clamp 91 is also arranged in front of the suction pipe 95, the example is constructed in the manner of the clamp shown in FIG. 13 and has a stationary clamp part (stop 911) and a movable clamp part (counter stop 916). The two clamps 91 and 92 are controlled synchronously at least for their closing movement in order to ensure that when these two clamps 91 and 92 are moved apart, the sliver 4 is actually pulled apart. As described in connection with the clamps 512 and 91 in FIG. 13, the two clamps 91 and 92 are initially in a starting position after the fiber sliver 4 has been introduced into the suction pipe 95 with the assistance of the negative pressure switched on the two clamps 91, 92 have a minimum distance c in the order of an average length of the staple fibers. By moving the two clamps 91 and 92 apart, the fiber ribbon 4 is then severed. Once this has been done, the roller 51, which was initially lifted off the roller 50 for tearing apart the fiber band 4, is returned to its clamping position, the fiber sliver 4 being clamped between itself and the roller 50. Now the tape feeder 5 is again approached to the clamp 91 and the tape start 43 is inserted into the suction pipe 95. In order to facilitate this, according to FIG. 16, the suction pipe 95 has an opening in the form of an insertion funnel 952. The negative pressure in the suction tube 95, which can optionally be switched off for the duration of the tearing apart of the fiber band 4 and then switched on during the renewed insertion of the fiber band 4 into the suction tube 95, now pulls 43 fibers out of the beginning of the band and thus gives the beginning of the band 43 a tapering shape.

The clamp 91 need not be arranged in front of the mouth of the suction pipe 95. If desired, the clamp 91 can also be arranged in the intake manifold, e.g. B. at the point at which, according to FIG. 15, the cutting device 96 is provided. Also in this one In this case, the fiber tape 4 can be torn off by moving the tape feeder 5 and the clamp 91 apart, so that a tape start 43 of a defined length is produced.

According to FIG. 16, suction pipe 95 is rotatably mounted, which is indicated by arrow P ₁₇ . To rotate the intake manifold 95, a drive motor 953 is provided which carries on its drive axle 954 a pinion 955 which engages with another pinion 956, which is arranged concentrically on the intake manifold 95 and connected to it. The drive motor 953 is connected to the control device 93 in terms of control.

The rotation of the suction tube 95 rotates the beginning of the strip 43, onto which the rotation is transmitted due to its small internal diameter and / or due to the relative arrangement of the suction tube 95 to the rollers 50 and 51, as a result of which the beginning of the strip 43 is solidified in its shape becomes. For example, by an inclination of the suction pipe 95 to the plane e on which the sliver 4 clamped by the rollers 50 and 51 is located, the beginning of the sliver 43 is inevitably brought into contact with the inner wall of the suction pipe 95. According to the embodiment shown in FIG. 16, the suction pipe 95 with its axis g is arranged in parallel, but laterally offset to the plane e. This also ensures that the beginning of the band 43 comes into contact with the rotating inner surface of the suction pipe 95 and thereby receives a twist. By rotating this around its own axis, a tapering of the beginning of the band 43 and additionally also a consolidation of the beginning of the band 43 is achieved.

Alternatively, it can also be provided that not the entire suction tube 95 rotates, but rather only its insertion funnel 952 in order to ensure that the belt start 43 wish to give twist (not shown).

The fiber tape 4 should be in the separation area, i.e. between the two clamps 92 and 91, ε have their full strength, so that the strip end 43 produced is also defined in its shape within acceptable tolerances. According to FIG. 15, this check is carried out with the aid of a light barrier 962 in the intake manifold 95. According to FIG. 16, a sensor device 97 for determining the strip thickness is provided instead of such a light barrier 962. This button device 97 has a swivel arm 971 which is pivotally mounted about an axis 972 and has a button roller 970 at one end which scans the axis 510 of the roller 51. An armature 973, which plunges into the interior of a coil 974, is connected on its other arm to the swivel arm 971.

The coil 974 is connected to the control device 93, which is further connected to the electromagnets 575 and 914, the motor 500 for the roller 50 and the drive motor 953 in a control-related manner.

After the fiber tape 4 has been taken up by the rollers 50, 51, the tape feeder 5 is again approached to the suction tube 95 and the beginning of the tape 43 is inserted into the suction tube 95, the funnel 952 facilitating such insertion. If desired, it can be provided that after the introduction of the belt start 43 into the funnel 952 of the suction tube 95, the roller 50 is driven and the fiber belt 4 is conveyed deeper into the suction tube 95.

The motor 500 of the roller 50 is then stopped. Then the two electromagnets 575 and 914 are actuated, which now clamp the sliver 4. Then the belt feeder 5 removed from the terminal 91 or in some other suitable way the relative distance between the two terminals 91 and 92 is increased. Since the minimum distance c between the two clamps 92 and 91 corresponds at least to the average length of the fibers contained in the fiber band 4, the fiber band 4 can be separated in a simple manner by pulling them apart. Due to the interlocking profiles of the clamping parts 920 and 922 of the clamp 92, the fiber tape 4 is held back by the tape feeder 5 in a gentle manner.

When the fiber ribbon 4 is inserted into the suction tube 95, the roller 51 changes its relative distance from the roller 50 in accordance with the thickness of the fiber ribbon. These movements of the roller 51 are transmitted to the armature 973 via the feeler roller 970, so that a corresponding current is induced in the coil 974 corresponding to these thickness fluctuations of the fiber belt 4, which current is passed on to the control device 93. This causes the roller 50 to be driven for as long after the belt feeder 5 has reached its working position relative to the suction pipe 95 until the sliver 4 has reached its full strength and none due to the feeler roller 970 via the armature 973 and the spool 974 significant fluctuations in band thickness can be registered in the control device 93.

After the fiber band 4 has been given a defined length by moving the two clamps 91 and 92 apart for at least a distance d (see FIG. 13), according to the example shown in FIG. 16, the band feeder 5 is re-established in FIG. 16 brought position shown, in which the rollers 50, 51 have reached their next position relative to the suction pipe 95. The roller 50 is now driven for a predetermined number of revolutions, so that a definite length is introduced into the intake manifold 95. The suction pipe 95 is now driven in the direction of the arrows P ₁₇ and rotates the front band end 43 together, so that it receives a tip. The tape tip later facilitates insertion into the feed device 2.

The described pushbutton device also makes it possible to convey the fiber belt 4 to such an extent that a belt section which does not correspond to the desired thickness is removed in the subsequent separation process. This can be achieved regardless of where and how the sensing device is designed, for example with capacitive scanning of the fiber band 4 and / or with the arrangement of a suitable sensing device independently of the band feeder 5.

In order to bring the beginning of the fiber band 4 into a pointed shape, various methods and devices can be used. According to the embodiment shown in FIG. 17, a helical groove 957 is provided for this purpose in the intake manifold 95, into which compressed air nozzles 958 with an axial and a tangential component open at one or more points.

The suction pipe 95 is connected via a valve 930 and a vacuum line 959 to a vacuum source, not shown.

If an air flow is now generated in the intake manifold 95 by opening the valve 930 and valves (not shown) for the compressed air nozzle 958, this is guided through the intake manifold 95 due to the helical inner contour of the intake manifold 95 (see arrow P ₁₈ ) and rotates in the process also the leading end of the fiber band 4, so that this by rotating it in a ne tip shape is brought. As already stated above, this pointed end of the band makes it easier to insert it later into the feeding device 2.

If necessary, it can also be provided that the beginning of the tape is brought into a press (not shown). To fix the pointed initial shape of the fiber band 4, if desired, inward-directed nozzles can then also be provided in this molding press, through which nozzles an icing agent or other means of attachment can be applied to the beginning of the band.

A further embodiment of a tape end preparation device 9 is shown in FIG. 21. In this embodiment, the tape end preparation device 9 is completely mechanical.

As part of the strip cutting device, the strip preparation device 9 here has, in addition to the rollers 50, 51 of the strip feeder 5, a further pair of rollers, the rollers 924 and 925 of which can both be driven in opposite directions by their own drive (not shown) ( see arrows P ₂₂ and P ₂₃ ). Due to the restricted arrangement of the two rollers 924 and 925, not only a tensile force is exerted on the fiber band 4, which together with the clamping force exerted by the band feeder 5 causes the fiber band 4 to be pulled apart. The band piece 407 separated in this way is additionally conveyed by the rollers 924 and 925 and placed on a transport belt 408, so that the band piece 407 is now transported to a collection point (not shown).

As the above description shows, the device for applying a fiber ribbon, for which purpose the auxiliary devices described heard from the fixation of the fiber band 4 at a defined location on the can 40 or another band feeder 3 to the introduction of the fiber band 4 into the feeding device 2, can be modified in a variety of ways. In particular, individual features can be replaced by equivalents and combined with one another in any manner. Thus, depending on the degree of automation desired, it is possible only to automatically introduce the fiber sliver 4 into the feed device 2 of a textile machine processing or processing a fiber sliver 4. In this case, it is sufficient if the sliver 4 is brought by hand into a receiving position in the vicinity of the feed device 2 to be operated. If necessary, the beginning of the band 43 can also be tapered by tearing off a section of band and brought into an optimal shape for application by manual sharpening.

However, if a fully automatic tape application is desired, it is necessary to prepare this tape application seamlessly from the previous work phase by means of further automatic work steps. This is explained with the aid of FIG. 19, which shows that automatic belt application is possible not only on an open-end spinning machine, but also on other machines, such as ring spinning machines and draw frames 7. FIG. 19 shows in a schematic representation a system with a card 79, the loading device of which is not shown for the sake of clarity. The card 79 supplies a can 45 which, like other cans, is fed to a draw frame 7. In the embodiment shown, 7 stretching strips 420 to 425 are fed to the stretching head of the stretch, which are removed from cans 450 to 455. There are reserve cans 46, 460, 461, 462, 463 and 464 in a second row on each side of the section 7. The fiber slivers are guided above a sliver guide 72. For more details to "U.S. Patent No. 4,838,018.

The fiber sliver is deposited in the can 45 at the outlet of the card 79 in the manner described above and fixed there in a ready position. The can 45 is then also guided in the manner described - similarly between the section 7 and the open-end machine 16 - in such a way that a belt feeder can find and grasp the end of the strip and insert it into the feed device 2, which is located in the stretching head 71 on a section 7 is located and 420 to 425 is provided once per sliver. The tape feeder 5, optionally also a tape start preparation device 9, is carried by a carriage 73, which is arranged above the tape guide 72 in a manner not shown and is movable. The tape feeder or the entire tape start preparation device 9 is movable in a manner not shown in such a way that it or it from the outer row of cans 46, 460, 461, 462, 463 and 464 the fiber tapes (not shown) can record and insert into the respective feed device in the stretching head 71. In the exemplary embodiment of a draw frame 7, the feed device 2 is formed by the pair of inlet rolls of a drafting device.

In section 7 the fiber ribbons - six ribbons in the example shown - are duplicated and warped, the thickness of the fiber ribbon delivered corresponding to the strength of the individual fiber ribbons 420 to 425 fed.

The cooperation between the section 7 and the open-end spinning devices 1 then takes place in the manner already described.

In the device shown in FIG. 19, the cans have 47 such a dimension that they extend over two adjacent open-end spinning devices 1. For this reason, it is provided that a can 47a of a first row of cans is assigned to every second open-end spinning device 1 a and a can 47b of a second row of cans is assigned to each open-end spinning device 1b located in between.

If it is found that with such a can group 470, consisting of a can 47a and a can 47b, the fiber band 4 threatens to run out, a corresponding impulse is given to the control device 18 of the open-end spinning machine 16, which then has the effect that ε as soon as possible - behind the two cans 47a and 47b in a third row a can 47c is made available as a reserve jug in a waiting position. As soon as the can 47a or 47b, from which fiber band 4 is continuously removed for the spinning, then runs out, the fiber band 4 is then, in the manner described above, from the can 47c into the corresponding feeding device 2, which is caused by the running out of the fiber band 4 set open end spinning device la or lb such a spinning device pair introduced.

FIG. 18 shows a schematic illustration of the essential elements for implementing the invention. The previously described elements of the tape start preparation device 9, its terminals 91 and 92 and its control device 93, which are necessary for the reception and application of the fiber tape 4, are located in this embodiment on a maintenance device 98 which is longitudinal the open-end spinning machine 16 and its multitude of open-end spinning devices 1 can be moved. This can be a maintenance device which, if desired, either only carries out the tape laying or which additional tasks - 87 -

takes over such. B. changing bobbins, piecing etc. If necessary, several different maintenance devices for one or more of the different special tasks can be provided on the machine.

In addition to the elements already described above, FIG. 18 also shows a drive device 58 for the belt feeder 5, this drive device being able to produce the most varied movements as required.

In front of the open-end spinning device 1, of which only the feeding device 2 ^"is shown in FIG. 18, in this embodiment there is not only a single feed hopper 106, as shown for example in FIG. 1, but a rail 17, in which each Spinning station two feed hoppers 170 and 171 are provided, which can alternately be brought into their working position directly in front of the feed device 2. According to Figure 18, these feed hoppers 170 and 171 have a toothed contour, which has the purpose of slipping the sliver 4 back However, pulling the fiber ribbon 4 in the direction of the feed device 2 is not impaired by this design of the feed funnels 170 and 171.

Between the two feed hoppers 170 and 171 there is a light source 972 which is assigned a photodiode 173 beyond the feed hopper 170 and a photodiode 174 beyond that of the feed hopper 171. The light barrier 175 between the light source 172 and the photodiode 173 thus scans a sliver 4 inserted into the feed hopper 170, while the light barrier 176 between the light source 172 and the photodiode 174 feeds the feed hopper 171 Fiber ribbon 4 scans. The two photodiodes 173 and 174 are in control connection with the control device 18 of the open-end spinning machine 16. Furthermore, two drive devices 177 and 178 are in a control connection with the control device 18, of which the drive device 177 of the rail 17 can give a longitudinal movement and the drive device 178 of the rail 17 can give a transverse movement.

In the starting position shown, the open-end spinning device 1 is supplied with a fiber sliver 4 by the feeding device 2, which sliver is removed from a can 40. As can be seen from FIG. 18, the sliver 4 is fed through the feed hopper 170 to the feed device 2. The light barrier 175 thus determines the presence of a fiber ribbon 4.

The light barrier 176, on the other hand, detects the absence of a fiber band 4 and sends a corresponding error signal to the control device 18. The control device 18, in turn, issues a corresponding command to the control device 93 of the maintenance device 98. As a result, depending on the design or setting of the control device 93, the maintenance device 98 either called to this open-end spinning device 1, where a fiber band 4 has run out, or stops the next time it drives past this open-end spinning device 1. A sliver 4 previously provided in the sliver holder 32 is then picked up by the sliver feeder 5 in the manner described above and brought into the desired state in the sliver start preparation device 9. This has been indicated by the dashed line 59.

After the preparation of the beginning of the band 43, the band feeder 5 is brought in front of the feed hopper 171, which is through line 590 has been indicated. As soon as the tape feeder 5 has arrived in front of the feed hopper 171 of the rail 17, the motor 500 is switched on for several revolutions, so that the rollers 50 and 51 insert the fiber sliver 4 into the feed hopper 171 sufficiently far. Then, by energizing the electromagnet 541, the pair of rollers consisting of the rollers 50 and 51 is opened and the sliver 4 introduced into the feed hopper 171 is released by the sliver feeder 5. When the belt feeder 5 is moved, the fiber belt is pulled through the belt holder 32.

If: now the fiber ribbon 4 passed through the feed hopper 170 runs out, this is registered by the light barrier 175. By . the false signal, which is now fed to the control device 18, is given a corresponding command to the drive device 177, which now displaces the rail 17 in the longitudinal direction so that the feed hopper 171 with the fiber band 4 previously provided there now arrives in front of the feed device 2. If this has happened, a further impulse is given to the drive device 178, which now shifts the rail 17 transversely to its longitudinal extent and thus introduces the replacement belt into the feed device 2 between the feed trough 21 and the delivery roller 20. Due to the rotation of the delivery roller 20, the fiber ribbon 4 is now drawn in, so that the spinning process can be continued.

The rail 17 then returns to its initial position by means of a transverse movement with the aid of the drive device 178.

A new fiber band 4 can now be introduced in the same way into the now empty feed hopper 170, so that when fen supplied through the feed hopper 171 of the feed device ^"2 Faserbandeε 4 by εeitlichen Rückverεatz and subsequently εchließenden Querverεatz the rail 17, a neueε Faεerband 4 in the Speiεevorrichtung 2 is inserted. Daε absence eineε Faεerbandes 4 can be signaled by means not shown, and in Depending on this signal, the provision of a new fiber band can be triggered.

The two feed hoppers 170 and 171 arranged in the rail 17 fulfill the functions of belt holders. Such tasks can also be assigned to the feed hopper 106. Such a tape holder - or such a pair of tape holders - connected upstream of the feed device 2 enables the tape to be applied in two stages. This is particularly advantageous if two conveyor holders are connected upstream of the feed device, which can be designed as feed hoppers 170 and 171, but alternatively also as clamps (not shown), which should then be openable and closable. These belt holders can either be delivered to the feed device 2 or brought into a readiness position. When the tape holders are designed as clamps, they are advantageously opened depending on the feed movement or the presence of the tape feeder 5 and closed depending on the return movement or the absence of the tape feeder in order to be able to pick up and hold back the new sliver 4.

The sliver 4 is thus applied in two stages to the textile machine, for example an open-end spinning machine 16. In the first stage the fiber band 4 is brought into a waiting position, from which in the second stage the fiber band 4 in the second stage at the desired time for introducing the fiber band 4 is brought laterally and transversely in front of the running feeding device 2 and introduced into it becomes. This offset occurs in accordance with the described exemplary embodiment depending on the runout of the fiber ribbon 4.

If the monitoring device, which monitors the fiber ribbon 4 fed to the feeding device 2, is provided at a location which is sufficiently far in front of the feeding device 2, for example by fastening the light barriers 175 and 176 ^~ to the rail 17 with the aid of longer holders 162 and 163 εo the beginning of the band 43 of the new fiber band 4 can be brought into the feed position at an early stage by offset of the rail 17 so that it overlaps with the end of the sliver 4 that runs out into the feeding device 2. The work process is thus not interrupted and need not be initiated again.

If it is established by the light barriers 175 and 176 that the introduction of the fiber band 4 into the feed hopper 170 or 171 in the waiting position has failed, the insertion process is repeated. Since the failure can be attributed to inadequate preparation of the beginning 43 of the tape, all processes from the preparation of the beginning of the tape 43 are repeated. The same procedure is followed in the event of failure of the direct tape application. In both cases, after a presettable number of failed attempts, these are terminated, and a signal is generated, as was previously described in connection with the direct application of the tape into a feeding device 2, possibly also without the interposition of a feed hopper 106 .

The greatest possible security during tape application is achieved if the sliver 4 to be fed to a feed device 2 that it is in a defined recording position, picked up and clamped. The sliver 4 is then cut to a predetermined length. The sliver 4 is then given a defined shape in that the beginning of the sliver 43 is sharpened and optionally solidified in this shape. The fiber tape 4 prepared in this way is now brought in front of the feeding device 2 and inserted into it. Now it is necessary to check the success of the introduction, for which purpose the ribbon 4 is monitored to determine whether it is being transported. This can be done with the aid of the rollers 50, 51 driven by the fiber band 4 - after actuation of the clutch 501 or by forming this clutch as a slip clutch - or by another band monitor so that this process can be repeated in the event of a failure of the band application.

With the aid of a device as shown in FIG. 14, another way of determining the times for a tape application to be carried out is also possible. If a defined belt length was previously deposited in the can 40 on the route 7 (see FIG. 18), it is sufficient to scan the switching flag 202 with the aid of the light barrier 203 (see light source 204 and photocell 205), which is proportional to the speed of the delivery roller 20 which is driven on its side with adjacent delivery rollers 20 jointly (not shown) or individually by a single drive 200. The number of pulses determined is thus directly proportional to the band length. It is thus possible to enter the strip length in a setting device connected to the control device 93 and / or 18, upon reaching which a strip change must take place. However, because of unavoidable tolerances, it is then necessary to cut through the old fiber sliver 4 when the new fiber sliver 4 is inserted into the feed device 2. It can be done so that at a The first tape length determined in this way later triggers the (electrical) request to provide a new can 40 and to provide a new sliver 4 in a receiving position, so that when a second determined (larger) processed tape length is reached, the new application is triggered. Of course, this means that, depending on the achievement of a fixed strip length, the can 40 must be provided with the fiber strip 4 to be inserted into the feeding device 2. However, the working position cannot yet be assumed at this point in time, since that can is still in the working position, from which the sliver 4 that is running out will be removed shortly. If this fiber band 4 has then run out or the second predetermined band length has been reached, the fiber band 4 of the can 40 provided is applied to the relevant feed device 2. If the outgoing fiber tape 4 has not yet ended, it is cut off in a suitable manner. Then the empty-spun or nearly empty-spun can 40 can be removed from the working position and exchanged for the full can provided, which thus now comes into the working position.

In order to avoid that when determining the processed tape length, the fiber tape 4 has to be severed, so that a tape residue is removed with the jug to be exchanged, according to FIG. 1 for each jug 40 and 41 in the working position, one inside the jug scanning sensor 303 or 304 is provided which, when the fiber band 4 runs out, triggers the introduction of a fiber band 4 in the ready position into the feeding device 2. 1, this sensor 303 or 304 is attached to the guide rod 300 of the tape feeder 3, but it is possible to attach the sensor 303 or 304 to the tape feeder 5. It is also possible to mount the sensor 303 or 304 on the guide rod 300 of the belt to be mounted movably 3 or on another suitable holder, so that it can be brought manually or automatically into different positions for scanning a can 40 or 41. It is also possible to provide the sensors 303 and 304 to be movable so that they can be assigned to several cans 40, 41 at the same time.

The first determined tape length can be, for example, so that the measured fiber tape 4 runs out within the next four hours. So there is still enough time to provide a filled jug and, if not previously done, to transfer the beginning of the tape into a defined receiving position.

The parts and assemblies which are necessary for receiving the sliver 4 in a receiving position and for a template in front of and for its introduction into a feed device 2 can, depending on the type and design of the textile machine, e.g. with a card 79, also on the textile machine itself; However, you can also use a transport device, e.g. the transport carriage 8 with which the cans 40 are delivered can be arranged.

If the sliver 4 is brought to a work station, for example in front of the feeding device 2 of an open-end spinning device 1, and is not yet in the receiving position, it must be brought into it. This can be done, for example, by a device for threading the beginning of the tape into the tape feeder 3, for example in the tape holder 32 designed as the tape guide according to FIG. The device for threading the fiber ribbon can essentially have the shape of one of the described ribbon feeders 5, 55 or 56. In the band holder 32, this threading device must move according to arrow P * (FIG. 2). The threading-in safety is particularly advantageous because it is designed as a controllable clamp (according to belt feeder 5).

Since the tape pickup is designed like the tape feeder, the tape pickup can serve as a device for threading the fiber tape 4 into the tape feeder 3.

The threading of the fiber tape 4 out of the tape feeder 3 can also be done by the tape pickup or the tape feeder.

FIG. 22 shows a device 35 for unthreading the sliver 4 from a sliver 3 of the design, as shown in FIG. The device for threading the fiber band 4 essentially consists of a fork-shaped band gripper 350 which is arranged at the radial distance at the end of a rotatable rod 351.

After the fiber band 4 has been inserted into the feeding device 2 of the textile machine and the band feeder 5 has also released the fiber band 4, the fiber band 4 should be threaded out of the band holder 31. For this purpose, the device 35 for threading the fiber sliver 4 is brought into the position shown above the fiber sliver 4. On its open side, the belt gripper 350 has a widening insertion opening 352, which is so designed that it forms a fiber band 4 that guides the fiber band onto a defined band run and that the band gripper 350, when it is in the direction of arrow P ₂₄ , that is, transversely to the sliver 4, is lowered onto it, which detects with certainty. Instead of the fiber tape guide, as described, being part of the tape gripper 350, a separate guide can also be provided which is located at another suitable location, e.g. B. on Tape feeder 3 is attached and holds the fiber tape 4 between the can 40 and tape holder 31 on a defined path.

After the belt gripper 350 has taken up the fiber sliver 4, it is rotated by rotation about the axis of the rod 351 in the direction of the arrow P ₂₅ and takes the fiber belt 4 with it. The arrangement of the band gripper 350 relative to the rod 351 is such that when the rod 351 rotates in the direction of the arrow P ₂₅ , when the rod 351 is essentially on the imaginary central axis h of the band holder 3, the fiber band 4 is rotated The band gripper 350 is lifted out of the band holder 32 and is finally released completely by the band gripper 350.

The guide can also be dispensed with if the tape threading device is designed accordingly if it is ensured in another way that the threading of the fiber tape 4 can be carried out. For this purpose, for example, the tape feeder can carry out a corresponding tape search movement and work with negative pressure, the picking up of the fiber tape 4 can be signaled due to a change in negative pressure so that the further operations of the threading procedure can then be carried out.

Of course, the tape threading may only be carried out after the tape has been attached. If the tape threading is not to be released by hand, the device 35 for threading the tape is coupled to a switching device (not shown) which, in the simplest case, is designed as a time relay or the like and triggers the tape threading. However, it can also be coupled to the return movement of the belt feeder 5, 55 or 56, since the belt application is ended during this return movement. In order to ensure that the threading of the fiber band 4 is triggered when the banding has been successful, this switching device is expediently connected directly or indirectly to the band monitoring device in front of the feed device 2 (for example the light barrier 175 or 176). Alternatively, the switching device can also be connected to the belt monitoring device 520 of the rollers 50, 51.

The device for unthreading the fiber band 4 from the band guide can be designed differently. If, for example, the band guide is formed in the form of a closed ring, from which a part of the circumference can be moved away for the insertion or removal of the fiber band 4, the threading device is, of course, designed and movable accordingly to accommodate this opening and closing movement to enable the ring part and the radial laying movement of the fiber band 4.

In the above description it was assumed that the supply of the sliver 4 into the feed device 2 perpendicular to the length of the machine or - e.g. in the case of circular knitting machines or other round machines 4 processing or processing fiber tapes - is carried out radially to the machine. However, this is not a necessary requirement. For example, the tape can also be applied in a direction parallel to the longitudinal axis of the machine or tangential to a round textile machine, in which case it is then of course necessary to adapt the movement of the tape feeder 5, 55 and 56 to this. The same naturally also applies to any feed straighteners 170 and 171 and their movements.

Claims

P atentan ε test

1. A method for the automatic application of a sliver to a textile machine or device having a feeding device, characterized in that the fiber sliver is brought with its end into a defined receiving position, in which the sliver end is taken up as the beginning of the sliver and transferred to the feeding device becomes.

2. The method according to claim 1, characterized in that the beginning of the tape is first brought into a standby position and is only transferred from this standby position to the receiving position.

3. The method according to claim 1 or 2, characterized. that the ready position or the receiving position is provided on a can to be fed to the textile machine.

4. The method according to claim 3, characterized in that the readiness position or the receiving position is provided in the center of the pot.

5. The method according to claim 3, characterized in that the readiness position or the receiving position is provided in the circumferential area of the jug.

6. The method according to Anεpruch 4 or 5, characterized in that ^' in or on the jug projecting down the band end has a length of at least 100 mm.

7. The method according to Anεpruch 6, characterized in that daε in or on the can downwardly projecting band end has a length of at most 200 mm.

8. The method according to one or more of claims 3 to 7, characterized in that the end of the strip is brought into the standby position provided on the can with the end of the filling of the can as the beginning of the strip and that the fiber band is then transported to the beginning of the strip by transporting the can into the can Recording position is brought to the relevant feed device.

9. The method according to claim 8, characterized in that the pot, after it has been filled in a filling station, is moved out of the filling station, but the feeding of the fiber band is finally ended.

10. The method according to claim 9, characterized in that the depositing of the strip end takes place centrally to the direction of ejection of the can from the filling station on the trailing side of the can.

11. The method according to one or more of claims 3 to 10, characterized in that the jug with the sliver is transported to the receiving position on the feed device in question and the sliver is secured on the jug during transport.

12. The method according to one or more of claims 3 to 11, characterized in that the jug is secured against rotation until the moment at which it reaches the take-up position with the beginning of the tape.

13. The method according to one or more of claims 1 to 12, characterized in that in the ready position and / or the receiving position a length section of the beginning of the strip is brought into a defined path of a predetermined length.

14. The method according to claim 13, characterized in that the length section of the fiber band is clamped in the vicinity of the free end of the beginning of the band, while the fiber band is guided axially movably at the other end of the defined path.

15. The method according to one or more of claims 1 to 14, characterized in that the beginning of the strip is brought into the receiving position above a can fed to the feeding device.

16. The method according to claim 15, characterized in that the fiber tape fed to the receiving position of the feeding device is guided so high that it does not come into contact with the fiber tape located in these channels when it is fed over other cans.

17. The method according to one or more of claims 1 to 16, characterized. that the beginning of the tape is prepared for transfer to the feed device.

18. The method according to claim 17, characterized in that the tape start to be prepared is brought to a defined length.

19. The method according to claim 18, characterized. that a strip section which does not correspond to the desired thickness is cut off from the beginning of the strip while it is being brought to a defined length.

20. The method according to claim 18 or 19, characterized in that the band to be brought to a defined length is produced by pulling the sliver apart.

21. The method according to one or more of claims 17 to 20, characterized in that the tape start to be prepared is pointed.

22. The method according to claim 21, characterized in that the tape start to be prepared is rotated for sharpening about its own axis.

23. The method according to one or more of claims 17 to 22, characterized in that the band to be prepared is initially subjected to an air stream.

24. The method according to one or more of claims 17 to 23, characterized in that the prepared Band¬ beginning is solidified in its shape.

25. The method according to claim 24, characterized in that the consolidation of the beginning of the tape by applying a εich cursed after a predetermined time - 1 0:

medium.

26. The method according to one or more of claims 1 to 25, characterized in that the beginning of the tape is inserted into the standby position when it is brought into the standby or receiving position, in which the fiber tape during further steps of the tape application and / or the preparation tion remains in place for this.

27. The method according to one or more of claims 1 to 26, characterized in that the beginning of the tape is passed directly into the running Speise¬ device when transferring to the textile machine.

28. The method according to claim 27, characterized. that the feed speed of the beginning of the strip into the feed device is matched to its delivery speed.

29. The method according to claim 28, characterized in that the beginning of the tape is fed to the feeding device at a speed that is less than or at most the same size as the delivery speed of the feeding device.

30. The method according to one or more of claims 1 to 29, characterized in that the belt movement of the applied fiber band is monitored in front of the feeding device and the introduction of the fiber band is repeated if the fiber band is not transported.

31. The method according to one or more of claims 1 to 30, in which the fiber band is introduced into the feed device of an open-end spinning device, in which When a fiber band runs out, there is a thread break which is ^" remedied by a piecing process, characterized in that a piecing process is connected to a successful insertion of the fiber band into the feeding device.

32. The method according to claim 31, characterized. that before the piecing process during the introduction of the fiber band, the fibers released from this are prevented from being deposited on or in the spinning element and removed.

33. The method according to claim 32, in which a spinning negative pressure is generated in the spinning element, characterized in that to prevent fiber deposition in or on the spinning element, this step is continuously or intermittently braked during the introduction of the fiber band into the feeding device in such a way that the The feed device supplied fibers are removed by the effective spinning vacuum.

34. The method according to one or more of claims 1 to 26 and 30 to 33, characterized in that the start of the tape is transferred to the textile machine in a waiting position offset from the normal belt run, from which eε at the desired time by moving to the feed position brought in front of the feed device and inserted into the running feed device.

35. The method according to claim 34, characterized in that the offset of the start of the tape which is in the waiting position into the feed position takes place as a function of the outlet of the fiber feed previously fed to the feed device.

36. Method according to claim 35, characterized in that the beginning of the band is brought into the feed position so early that it is fed to the feeding device in an overlapping manner with the end of the expiring band of fibers.

37. Method according to one or more of claims 34 to 36, characterized in that the beginning of the tape in the waiting position is secured against sliding back.

38. Method according to one or more of claims 34 to 37, characterized in that the beginning of the tape brought into the waiting position is monitored and the insertion process is repeated if the beginning of the tape fails.

39. Method according to claim 30 or 38, characterized in that the insertion process is repeated from the preparation of the beginning of the tape.

40. Method according to one or more of claims 30 to 39, characterized in that an error signal is generated after a predetermined number of failures.

41. The method according to one or more of claims 1 to 40, characterized in that the fiber tape to be supplied is picked up and clamped in a defined position, then severed and brought into a defined shape so that the fiber tape so prepared is in front of the feeding device is brought in and introduced into it, whereupon a defined length of tape is introduced into the feed device and the insertion success is checked in order to ensure that the beginning of the tape is unsuccessful Repeat insertion process.

42. The method according to one or more of claims 1 to 41, characterized in that the strip length fed to the feed device is monitored and that an additional can is provided as a function of exceeding a fixed strip length and the beginning of the strip is introduced into the feed device .

43. The method according to one or more of claims 1 to 42, characterized in that the strip length fed to the feeding device is monitored and that, depending on the strip length being reached, the beginning of the strip in the meantime provided fiber strip in the jug provided in the feeding device is introduced.

44. The method according to one or more of claims 1 to 43, characterized in that the pot with the fiber ribbon to be introduced is provided in a waiting position, that the fiber ribbon is then applied to the feeding device and that the pot is made with the newly created fiber ribbon is then brought into its working position after the jug, from which the fiber tape that has now spilled has been removed, has been removed from its working position.

45. The method according to one or more of claims 1 to 44, characterized in that the inside of the jug is scanned with the fiber ribbon fed to the feeding device and when the fiber ribbon runs out, the beginning of the ribbon starts with a fiber ribbon in a ready position in the feeding device becomes.

46. Method according to one or more of claims 1 to 45, wherein each can essentially has a diameter of the order of two adjacent work stations, each with a feeding device, characterized in that behind the two cans arranged one behind the other in their working positions, two adjacent feeding devices have the waiting position for a third can as a reserve jug for the introduction of a fiber band into the feeding device is provided.

47. Device for the automatic application of a fiber ribbon to a textile machine or device having a feeding device, for carrying out the method according to one or more of claims 1 to 46, characterized by a ribbon feeder (3) in which the fiber ribbon (4) is defined in a Receiving position is stable, as well as a belt feeder (5, 55, 56) for receiving the fiber band (4) presented in the receiving position, as well as for inserting it into the feeding device (2).

48. Device according to claim 47, characterized in that the tape feeder (3) is formed by a can (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464) in which the fiber tape to be applied (4th ) the feed device (2) is presented.

49. Device according to claim 48, characterized by a filling station (7, 79) with a tape deposit (70) and a control device for generating a relative movement between tape deposit (70) and can (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464) in such a way that the fiber band (4) with the band end (430) in a defined position on or in the jug (40, 41, 410, 411, 45, 450 - 466, 46, 460 - 464) is filed.

50. Apparatus according to claim 49, characterized by a tape dispenser (70) depositing the tape end (30) in the center of the tape turns in the can (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464) .

51. Device according to claim 50, characterized in that the band feeder (55, 56) in the center of the jug (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 46_4) can be brought between the band windings for the defined reception of the binding end (430).

52. Apparatus according to claim 49, characterized by a tape dispenser which deposits the tape end (430) over the can rim (401).

53. Apparatus according to claim 52 _τ characterized in that the tape feeder (56) along the circumference of the can (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464) is movable for the defined recording of the tape end ( 430).

54. Apparatus according to claim 47, characterized in that the tape feeder (3) on a jug (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464) is attached.

55. Apparatus according to claim 54, characterized by a releasable attachment of the tape feeder (3) to the can (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464).

56. Apparatus according to claim 54 or 55, characterized gekennzeich¬ net that the tape feeder (3) is designed as a tape guide.

57. Device according to one or more of claims 54 to 56, characterized by a filling station (70, 79) with a 108 -

Nem tape dispenser and a control device for generating a relative movement between tape dispenser and tape feeder (3) in such a way that the sliver (4) is inserted with its end into the tape feeder (3).

58. Device according to one or more of claims 47 to 57, characterized by a tape pickup for the defined recording of the in a defined position on or in the can (40, 41, 410, 411, 45, 450 - 455, 46, 460 to 464) deposited fiber ribbon (4) and for transferring the same as ribbon start (43) to the ribbon feeder (5, 5.5, 56).

59. Apparatus according to claim 58, characterized in that the tape pickup can be brought between the tape turns in the center of the can (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464).

60. Device according to claim 58, characterized in that the tape receiver is movable along the circumference of the can (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464).

61. Device according to one or more of claims 47 to 60, characterized by a pneumatic belt storage device and / or belt receiver and / or belt feeder (55, 56).

62. Apparatus according to claim 61, characterized in that the tape dispenser and / or the tape receiver and / or tape feeder (55, 56) has a substantially tubular base body connected to a switchable overpressure / underpressure source, which is attached to its Free end has a length (522) which is adapted in length to the length of the band end (430) to be detected and which is εich over a Partial extent of the basic body extends.

63. Device according to claim 62, characterized in that the base body is subdivided into a plurality of chambers (554, 555, 556) extending in the longitudinal direction, each of which has a separate partial surface (552a, 552b) of the sieve (552 ) is limited and can be switched individually to negative pressure or positive pressure.

64. Device according to claim 63, characterized in that the air flow in the pneumatic belt depositor and / or belt pickup and / or belt feeder (55, 5 "6) is controllable in dependence on its movement.

65. Device according to claim 49 or 57, characterized by a transport device (8), through which the can (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464) from the filling station (70, 79) can be brought to the feeding device (2), and cooperating guides (81, 810 - 812, 311, 403 - 406, 411) on the transport device (8) and jug (40, 41, 410, 411, 45, 450 - 455, 46, 460-464).

66. Device according to claim 65, characterized in that the pot (40, 41, 410, 411, 45, 450 - 455, 46, 460 - 464) and the textile machine (16) cooperate guides (311, 403 - 406, 411 , 160, 161).

67. Device according to claim 65 or 66, characterized in that the guides (164) are arranged in the vicinity of the lower end of the can (40, 41, 411).

68. Device according to claim 65 or 66, characterized in that the guides (165) are arranged in the vicinity of the upper edge of the can (40, 41, 411).

69. Device according to one or more of claims 65 to 68, characterized in that the guide connected to the can (411) is formed by an out-of-round outer profile of the can (411).

70. Apparatus according to claim 69, characterized in that the can (411) has an elongated cross section.

71. Device according to claim 70, characterized in that the dimensions of the jug (411) are selected such that the capacity of the flat jug corresponds to the capacity of a conventional round jug.

72. Device according to claim 71, characterized in that the capacity of the can (411) with an elongated cross section corresponds to that of a can with a round cross section with a diameter of 450 to 500 mm.

73. Device according to claim 71 or 72, characterized in that the width of the can essentially corresponds to the width of a spinning position of an open-end spinning machine and the length of the can is essentially four times its width.

74. Device according to one or more of claims 47 to

73, characterized in that the jug (411) has a loose bottom (414) which can be raised by the action of the outside.

75. Device according to one or more of claims 65 to

74, characterized in that the guide (311) of the channel (40) is connected to the belt feeder (3).

76. Apparatus according to claim 47, characterized in that the belt feeder (3) is arranged at the end of a rail (30) attached to the machine frame (107).

77. Apparatus according to claim 76, characterized in that the rail (300) is displaceable transversely to the machine longitudinal direction.

78. Device according to one or more of claims 54 to 77, characterized in that the tape feeder (3) is arranged at a vertical distance above the upper edge of the can (401).

79. Device according to one or more of claims 54 to 78, characterized in that the tape feeder (3) has two tape holders (32, 33) arranged at a distance from one another.

80. Apparatus according to claim 79, characterized in that the two band holders (32, 33) are arranged at the same height in the essential horizontal direction.

81. Device according to claim 79 or 80, characterized in that - seen in the direction of the band beginning (43) - the first band holder (32) is designed as a band guide and the second band holder (33) is designed as a clamp.

82. Device according to claim 81, characterized in that the clamp of the tape feeder (3) has an insertion guide (334, 335) which tapers in the transverse direction to the tape course and which self-threading the fiber tape (4).

83. Device according to claim 81 or 82, net that the tape guide (32) has a radially outwardly leading tape insertion slot (322).

84. Device according to one or more of claims 81 to 83, characterized by a device for threading the start of the tape (43) into the tape guide (32).

85. Device according to claim 82, characterized in that the device for threading the fiber band (4) is designed as a controllable clamp.

86. Device according to one or more of claims 81 to 85, characterized by a device (35) for unthreading the fiber sliver (4) from the sliver guide (32).

87. Device according to claim 86, characterized in that the device (35) for unthreading the sliver (4) is designed as a fork-shaped belt gripper (350) which is movable transversely to the sliver (4) and is located at a radial distance on an axis rotatable about its longitudinal axis is.

88. Device according to claim 87, characterized in that the ribbon gripper (350) is assigned a fiber ribbon guide (352) which brings the fiber ribbon (4) to a defined ribbon path.

89. Apparatus according to claim 88, characterized in that the sliver guide (352) is part of the tape gripper (350).

90. Device according to one or more of claims 86 to 89, characterized by a switching device for triggering the tape unthreading from the tape guide (32).

91. Device according to claim 90, characterized in that the switching device is connected in terms of control to a belt monitoring device (520, 175, 176).

92. Apparatus according to claim 84 or 86, characterized gekennzeich¬ net that the device for threading the fiber sliver (4) and / or the device (35) for threading out the fiber band deε (4) by the tape receiver or the tape feeder (5, 55, 56) is formed.

93. Device according to one or more of claims 47 to 92, characterized in that the tape feeder (3) has a tape length measurement mark.

94. Device according to one or more of claims 47 to 93, characterized in that the belt feeder (5) has a controllable clamp (50, 51; 92) which is movable transversely to the fiber belt (4) which is in the receiving position.

95. Device according to claim 93 or 94, characterized in that the controllable clamp (50, 51) of the belt feeder is designed as a pair of rollers, with the aid of which the beginning of the belt (43) can be fed to the feeding device (2) and its rollers (50, 51) can be removed radially from one another.

96. Device according to claim 95, characterized in that the pair of rollers has a drivable roller (50) and a roller (51) which can be carried by the drivable roller (50).

97. Apparatus according to claim 95 or 96, characterized in that the rollers (50, 51) are overhung and their clamping line towards the bearing side is supported by a belt support. tongue (505) is limited.

98. Device according to claim 97, characterized in that the overhung rollers (50, 51) each have a corrugation (506, 511) which is so inclined to the surface line that they can rotate with rollers rotating in the feed direction ( 50, 51) approach each other.

99. Device according to one or more of claims 47 to 98 characterized by a belt monitoring device (520, 175, 176) which is connected to the belt feeder (5, 55, 56) in terms of control.

100. Device according to claim 99, characterized in that the belt monitoring device (520, 175, 176) in front of the feed device (2) can be brought into effect.

101. Device according to claim 100, characterized in that the tape monitoring device (520) is arranged on the tape feeder (5).

102. Device according to claim 101, characterized in that the belt monitoring device (520) is formed by a button device which is assigned to a roller (50, 51) of the pair of rollers, the drive of which is designed so that the pair of rollers is formed by that moving sliver (4) can be driven.

103. Device according to claim 102, characterized. that the drive of the driven roller (50) contains a clutch (501).

104. Device according to claim 103, characterized. that the clutch (501) is controllable.

105. Device according to claim 103, characterized in that the clutch (501) is designed as a slip clutch.

106. Device according to one or more of claims 102 to 105, characterized in that one of the two rollers (50, 51) has markings (502, 506, 511) on its circumference which can be scanned by the scanning device (520) .

107. Device according to claim 106, characterized in that the markings have a maximum circumferential distance of 90 °.

108. Device according to claims 98 and 106, characterized in that the markings are formed by the corrugation (506, 511) of the rollers (50, 51).

109. Device according to claim 99, characterized in that the belt monitoring device is formed by a device (202, 203, 204, 205) which scans the drive (200) of the feed device (2) during continuous spinning operation.

110. Device according to claims 90 and 102, characterized in that the feeler device (520) is designed as a switching device for threading out the fiber band (4).

111. Device according to one or more of claims 95 to 110, characterized in that the rollers (50, 51) are reversible in their direction of rotation and - viewed in the direction of the beginning of the strip - they are followed by a strip length scanning device (962), the tax with the Drive (500) of the rollers (50, 51) is connected.

112. Device according to one or more of claims 95 to 111, characterized in that the speed of the roller pairs of the belt feeder (5) can be matched to the peripheral speed of the feed device (2).

113. Device according to one or more of claims 47 to 111, characterized in that the belt feeder (5) is pivotally mounted and its pivoting speed can be matched to the circumferential speed of the feeding device (2).

114. Device according to one or more of claims 95 to 113, characterized. that the rollers (50, 51) are part of a strip thickness sensing device which is connected to the drive of the rollers (50, 51) in terms of control.

115. Device according to one or more of claims 47 to 114, characterized in that a tape start preparation device (9) with two parts movable relative to one another, one of which is formed by the tape feeder (5, 55, 56).

116. Device according to claim 115, characterized in that the part of the tape start preparation device (9) cooperating with the tape feeder (5, 55, 56) is stationary.

117. Device according to claim 115 or 116, characterized in that the tape start preparation device (9) has an insertion funnel (952).

118. Device according to claim 117, characterized in that the insertion funnel (952) can be driven in rotation.

119. Device according to one or more of claims 115 to 118, characterized in that the tape start preparation device (9) has a controllable suction nozzle (95).

120. Device according to claim 119, characterized in that at least one compressed air nozzle (958) with an axial and a tangential component opens into the suction nozzle (95).

121. Apparatus according to claim 119 or 120, characterized in that the suction nozzle (95) has a helical inner contour.

122. Device according to one or more of claims 47 to 121, characterized by a tape start preparation device (9) having a tape separating device (91, 92; 5, 91; 96).

123. Apparatus according to claim 122, characterized in that the band cutting device is designed as a cutting device (96).

124. Device according to claims 93 and 123, characterized in that the tape length measurement marking is designed as a cutting device (96).

125. Device according to claims 119 and 123, characterized in that the cutting device (96) is arranged in the suction nozzle (95).

126 ^" . Device according to claim 125, characterized in that the cutting device consists of (96) an anvil (961) and a radially movable to this anvil (961) sea (960) which in its rest position releases the interior of the suction nozzle (95).

127. Device according to claim 126, characterized in that the anvil (961) is designed as a cylinder which can be rotated about its axis.

128. Device according to claim 127, characterized in that the cylinder can be rotated by a rotation angle (α) determined by its stroke each time the cutting device is actuated by the knife (960).

129. Device according to one or more of claims 122 to 128, characterized in that the belt cutting device (91, 92; 91, 50, 51) has a controllable clamp (91) which works together with the belt feeder (5).

130. Apparatus according to claim 129, characterized in that the clamp (91) cooperating with the strip feeder (5) of the strip start preparation device (9) is in control with the drive of the rollers (50, 51) of the strip feeder (5). connected is.

131. Apparatus according to claim 129 or 130, characterized gekenn¬ characterized in that the with the belt feeder (5) cooperating clamp in the form of a pair of rollers driven in opposite directions (924, 925) is formed.

132. Device according to claim 131, characterized in that the rollers (924, 925) are arranged in a mutually restricted manner.

133. Device according to one or more of claims 122 to

132, characterized in that the pair of rollers of the belt feeder (5) is part of the belt cutting device (50, 51, 91).

134. Device according to one or more of claims 122 to

133, characterized in that the belt feeder (5) and the clamp (91) cooperating with the belt feeder are assigned a drive for changing the relative distance.

135. Apparatus according to claim 134, characterized in that - seen in the direction of the strip start (43) - the strip separating device has a further controllable clamp (92) connected upstream of the pair of rollers (50, 51).

136. Device according to claim 135, characterized. that the further clamp (92) upstream of the pair of rollers (50, 51) has two clamping elements (920, 922) with interlocking profiles (921, 923).

137. Device according to claim 136, characterized in that the interlocking profiles (921, 923) are rounded.

138. Device according to claim 137, characterized in that one of the interlocking profiles (921, 923) has a concave cross-section and the other of the interlocking profiles (921, 923) has a convex cross-section.

139. Device according to one or more of claims 135 to 138, characterized in that the two controllable clamps (91, 92; 91, 50, 51) of the belt cutting device can be controlled synchronously.

140. Device according to one or more of claims 134 to

139, characterized in that the minimum distance between the two clamps (91, 92; 91, 50, 51) of the band separating device is predetermined by the stack length of the fibers of the fiber band (4).

141. Device according to one or more of claims 134 to

140, characterized in that the distance between the two clamps (91, 92; 91, 50, 51) of the band separating device can essentially be increased to twice the stack length.

142. Device according to one or more of claims 134 to

141, characterized in that at least one of the two clamps (91, 92; 91, 50, 51) is pivotally mounted to increase the minimum distance.

143. Device according to one or more of claims 115 to 142, characterized. that the tape start preparation device (9) has a tape length scanning device (962) which is connected to a control device (93) in a control-related manner.

144. Device according to claim 143, characterized. that the control device (93) is connected to the drive of the rollers (50, 51) of the belt feeder (5).

145. Device according to one or more of claims 115 to 144, characterized in that the tape start preparation device (9) has a tape end fixing device (965) which can be brought into action on the tape end. points.

146. Apparatus according to claim 145, characterized in that the band-end fixing device (965) is designed as a spray device.

147. Apparatus according to claim 146, characterized in that the spray device (965) is designed as an icing device.

148. Device according to one or more of claims 47 to 147, characterized in that the feed device (2) is preceded by a belt holder (106, 170, 171).

149. Apparatus according to claim 148, characterized in that at least two belt holders (170, 171) are connected upstream of the feeding device (2) and these belt holders (170, 171) of the feeding device (2) are optionally deliverable or can be brought into a readiness position .

150. Device according to claim 148 or 149, characterized in that the at least one strap holder (106, 170, 171) can be opened and closed.

151. Device according to one or more of claims 148 or 150, characterized in that the at least one belt holder (106, 170, 171) can be controlled as a function of the movement and / or position of the belt feeder (5, 55, 56) .

152. Device according to one or more of claims 148 to 151, characterized in that the at least one band holder (106, 170, 171) is designed as a feed hopper. 1 2:

153. Device according to one or more of claims 47 to 152, characterized in that the tape feeder (5, 55, 56) and possibly other auxiliary devices such as tape start preparation device (9) and clamps (91, 92; 91, 50, 51) are arranged on a maintenance device (98, 75) which can be moved along a large number of similar work parts.

154. Device according to one or more of claims 65 to 152, characterized in that the tape feeder (5, 55, 56) and possibly further auxiliary devices such as tape start preparation device (9) and clamps (91, 92; 91, 50, 51) are arranged on the transport device (8).

155. Device according to claim 153 or 154, characterized in that the belt feeder (5/55/56) and possibly other auxiliary devices such as the tape start preparation device (9) and clamps (91, 92; 91, 50, 51) are height-adjustable.